After reading the mixed reviews, I decided that it was worth taking a chance, given the low price. What I found was a tool that projected lines clearly and accurately, and it self leveled far better than I ever thought it would.

I've used traditional bubble levels, and levels with built in lasers that rely on the user positioning them using a bubble. With any of those, there is still a degree of error since it's a matter of judgment whether the bubble is exactly between the lines or in the middle of the circle.

This level merely requires being held against a wall, or mounted with adhesive. It doesn't matter if you hold it a few degrees off center because the lines will eventually come to rest exactly where they should.

After rereading some of the negative reviews, it became clear that some reviewers simply did not know how to use it and never read the directions. Since the bottom part is curved, it's not surprising that one reviewer found things off by a few inches since if it's facing the correct way, it will fall over completely if you put it down. It is designed to be against a wall with the switch facing toward you and the writing facing the correct way to read.

The manufacturer also says you will get 10 hours of use with four 1.5v alkaline batteries, so I don't understand why a reviewer would use four 1.2v NiMH rechargeable batteries instead, and then complain that it's dim. If your batteries drop from 6v to 4.8, it might be time to replace them.

I found the switch to be easy to use, and had no problems at all. It's possible that there are defective units out there, but by the nature of the design, it's hard to imagine that leveling would be off. But if your switch sticks or you have to whack the thing to use it, even with good batteries, Amazon will not only give you a refund, but will also pay for return shipping, so it's not much of a gamble.

A limitation is that you can't use this to check to see if your floor is level, nor could you project a line within the bottom inches of your wall. But the manufacturer tells you that up front. And you also can't sit it on a desk or a table that you want to level. But you wouldn't want a laser for that anyway.

Excellent item for the cheap do-it-yourselfer. Great item that does the same as the 400 dollar level but costs 95% less. Love it. Now I am demolishing my baths and running level and straight-lines to make perfect re-dos. Popping chalk-lines is an old-school trick. I am so happy....well I will get many hundreds of dollars of use out of this baby. Thanx a mill. I expected far-less for the price.

The forward pointing laser was exactly what it was supposed to be - a laser. The other two lasers at 90 degrees were completely fuzzy past a couple feet and unusable. Don't waste your money.

level is dead on. lines do blur a bit once you move farther away (10ft or so) but only by a few mm.

will only level on a wall, if you're placing it on the ground (ie tile work) the level function doesn't work. Switch it to the locked position.

having the intersection point is very helpful.

the unit seems big but with the included strips hangs to any surface well.

I don't recommend it, but my unit survived a 20 ft fall onto concrete floor.

I have used this for close to a year now.... It some of the problems I have read in the other reviews like the switch being a pain.... and the lines getting lighter..... But both were curable ...the switch ...cured by taking off the "decorative knob" and just using the original slide switch.... sometimes the marketing guys get TOO fancy.... and the changing of intensity was cured by just cleaning the contacts on the battery compartment.... We searched all over for a 90 degree intersect with one line extending both ways and it is virtually impossible to find in the pro area or DIY area.... many 90 intersect with one line meeting another at right angles but not a perpendicular on a line. My last one got damaged when it fell from a scaffold and tried to buy another and no one had any left..... found it again here on Amazon and ordered two...just in case

Ron Sauro
NWAA Labs
www.nwaalabs.com

This thing has been sitting in my drawer for almost a year. After I tried using it the first time, I gave up because it was hard to mount or place on carpet, if needed. It was also too bulky to mount using the sticky tape. So after trying to mount it and stick to the wall for 10 min, I put it in the drawer. I was going to return it but forgot it was in the drawer.

I have 3 other lasers and levelers that are more practical. They are much more effective without the self leveling gimmick/feature. The most handy laser leveling tool is my 24" level stick with a built in bubble and laser. That has saved me a lot of time.

The lines fade away and back. The prism is more like a toy. Weak laser line, hard to see, not a good tool. Thank's for nothing.

This gadget's not the sort of tool to survive much banging around, but the one Amazon sent me is handy and consistently level to better than 1/4 inch at 50' referenced against a water level. The lasers aren't as bright as might be hoped, even when using NiMH batteries, but that's because all consumer devices are limited by law to a reasonably safe maximum power.

I had a friend that bought this simular product from one of the HD/LW stores and loved it. So when I bought this one I too loved how it worked. It was a bit smaller than his, but worked great. and the price was what sold me. I love to use this while I lay tile. or to line up walls while framing basements. I can use the perpendicular lasers to make sure my corners are square.

This thing bites. I used it to lay out stakes about 25 feet away. The light is very dim at this distance, even at night. Then, to double check, I picked up the unit, put it back down again, and repeated the measurements. They had moved 3 inches!! A third try was in between the first two. IOW, it does not self level. It's cheap, but a total waste of your money.

When the laser is operating at full intensity, the tool is very useful. More often, however, the laser dims dramatically and I have to tap the case several times to restore the proper brightness. The slightest vibration causes the laser to dim again, frustrating my attempts to use this tool.

If I had it to do over again, I would gladly pay more for a higher quality laser tool.

I picked up my STRAIT-LINE Intersect Laser Level at Wal-Mart on one of my 3:00 AM "I can't sleep, I'm going to Wally World to see what's on the Clearance Aisles" forays. (It's funny how my ex-girlfriend once called this one of my "charming idiosyncrasies" but more recently has declared it to be "aberrant behavior".) I bought the level solely because it had been marked down from $48.73 to $15.00.

I didn't have an immediate use for the level, so after showing off my plunder I put it the "Fling Room". (The Fling Room is an extra room in which all things that don't have a proper place to be stored are "flung". This does a remarkable job of eliminating clutter in the rest of the house. You fling stuff in, and periodically sort some things out and find a permanent place for them. My ex deemed this to be abhorrent behavior.

I decided that I should partition off the end of the solarium for a new fling room and convert the current fling room back into a guestroom. I needed to mark off a right angle - using the Theorem of Pythagoras - but I didn't have a dummy for the other end of my chalk line. I remembered the intersect level and used it to start my project. It worked exactly as claimed.

My level now has a permanent place to live where it is readily available. Additional uses for it are limited only by imagination. An example: I have another lady friend who is an obsessive-compulsive picture straightened. Before I know she is coming over, it is very easy to hold the level against the wall and level or plumb artwork, photographs, and mirrors. She has a very good eye and can see that nothing is out of line. It must drive her nuts.

Pythagoras brings something to mind. There were once three Indian squaws on the reservation that were with child at the same time. As luck would have it, they all gave birth on the same cold, cold winter day. The first squaw had an eight-pound boy and her brave presented her with a deer skin to keep them warm and cozy. Then the second squaw had another eight-pound boy and her brave supplied her with an antelope skin to protect them from the cold. Finally, after a long labor, the third squaw gave birth to a sixteen-pound son. Her brave gave her a hippopotamus skin. This illustrates that the son of the squaw of the hippopotamus is equal to the sons of the squaws of the other two hides.

This product works as advertised....no more crooked shelves for me! As a woman who struggles with home repairs any kind of help I can adopt is wonderful and when it works this well, it is welcomed.

Only one line; horizontal, was focused but other two vertical lines were out of focus. This defeats the purpose of this product.

After 3-4 use laser lines won't turn on, I had to shake it a bit to turn on laser light beams.

The price is right, the features are useful, but one of the most important characteristics, the visability of the laser line I found poor. It sometimes dims, the horizontal lines don't line up exactly, and the laser lines put down are a bit wide -- compared to my $10 no-frills laser straight line. I have to smack my unit around to get the red lasers to brighten when it will inexplicably get dim all by themselves -- yes, I did take the plastic safety insert out of the laser. Seems like I got a shoddy/defective unit.

If I had purchased it from a brick & morter I would definitely bring it back for a swap.

This is one very useful tool. It is great because you actually get to see where the lines intersect and because it projects lines and not just a dot on the wall. When placed on the floor, my unit will project lines on the floor and a short distance up the walls as well. All of that for a reasonable price. I have other lasers, but I like this one the best. I probably won't be using those other lasers much any more.
As one of the other reviewers has noted, the switch is hard to work. Mine was REALLY hard to work. I thought I would break the tool. I took out my Dremel mototool and cut part of the black switch off so I could apply more force. I'm 6'4" tall, weigh a lot, and don't have my nails done. The tool is shaped like a wedge of cheese cut from a big wheel of cheese. The back side is curved. I wish the back side was flat and perpendicular/parallel to the two laser lines it projects (when the lines are "locked"), so you could back the unit up to a finished wall and you would know that one of the projected lines was parallel and that the other line was perpendicular to the wall that the unit was backed up to. I know I can get around that with some additional measurements, but I can dream. I strongly recommend this tool for people who do floors. It is a cool tool.

I have used STRAIT-LINE 6041300CD Intersect Laser Level to hange pictures and set up some shelving in my basement. It worked. No complaints.

I own several of the newest laser levels---the Ryobi, Straight Laser, etc. and now the Strait Line Intersect--
The intersect is by far the best of the bunch, the auto level has worked flawlessly thus far--even after a slip and fall from 8 1/2 feet up to the hard wood floor. Wish more time and thought was put into the latest tools such as this one

Oh, and by the way--it beats the pants off the other straight line laser levels offered too!!!!
THIS ONE IS TRUELY TOPS in my book

After reading the last 3 reviews I didn't know what to expect when I received my tool. 2 reviewers gave it 1 star and 1 reviewer gave it 5 stars. I then realized that the people that respond to the reviews are either very excited about the product or sorely disappointed. My review comes from a DIY'er in Atlanta that found the tool very helpful. It seemed to be level and plumb and didn't mare my drywall. I even dropped the unit on my hardwood floor and it still worked. It is made of cheap plastic and probably not a good choice for a professional but works very well for a DIY'er like myself.

I am not satisfied with the tool. I tested mine by making a vertical level line on a wall. I then placed the unit on the wall using the self leveling mode. It was way out of plumb!!
I had to rotate it at an angle to get it to match the plumbed line. The settings switch is a little dificult to maneuver also.

This level was a nice gift for a few moments, but soon failed. It is made of cheap plastic, more reminiscent of a $3 dollar toy than a $50 tool. It has a sliding plastic switch that allows you to turn the laser on, and select whether or not you want the laser to be fixed or auto-leveling. This switch is linked to some sort of electric connection and a mechanical linkage within the device - which jammed after the first use. Now the laser is stuck in the fixed, on, position. Useless to me now.

I am returning it, and will not request another. I assume there are more reputable tool makers that make a similar device that is better designed and constructed.

I would not recommend this product. Better to pay more and have something that will last.