My 5.75 year old daughter has had this toy for over a year and she loves it. We take it in the car and she practices her math problems on the road instead of complaining she's bored. She seems to really like the postive reinforcement she gets ("wow you got 8 in a row!") and she feels good when it automatically adjusts her level up. We recently purchased the 1st/2nd grade cartridge for it and she's learning even more now. For details on the level equivalents, and etc., see the LeapFrog website :

http://www.leapfrog.com/do/findproduct?ageGroupID=ages_grade&id=ttmath
They explain the concepts being taught and provide sample problems for each level.
This toy has stood up to use by my daughter since she was 4 (include a few drops), so it's durable enough. It's also has a strap that makes it easy to carry along.
I strongly recomment Turbo Twist Math.

I bought turbo twist math to refresh my math skills. It is a great refresher for any adult to keep math skills sharp, I was amazied how much I had forgoten, and the turbo twist brought my math skills back up to par. This is a great produce, and lost of fun to play with. I am going to buy turbo twist spelling next.

My daughter was originally given Turbo Twist Fun Facts as present for her 6th birthday. She played with it the minute she got it. That was three years ago. She's still playing with it. After seeing how much she enjoyed the Fun Facts, we got her Turbo Twist Math for Christmas two years ago. It was a little beyond her at that point, so she didn't play with it as much as the Fun Facts. As she started to understand maths, the more she enjoyed this toy. Her 6 year old sister now fights for her chance to play with them. I plan to buy the spelling unit for her upcoming birthday. I would recommend either of these toys to those parents whose children have a real hunger for knowledge. For those children who would rather sit in front of a tv hooked up to their playstation, I wouldn't recommend any of the Turbo Twist line.

I would definitely not recomend this toy to ALL. It's not worth its cost. My daughter bought a Turbo Twist Maths. She plays with it then after a few minutes puts it down and says that she's bored. She has played with this toy various times and has finished all of the questions so that everything is repeating over and over again. All Leapfrog toys are like this, NEVER EVER BUY THEM.

I loved this! It helped me get all my math facts right. I love how you can change it from times tabels to desimals. The only thing i don't like about it is that it uses up a lot of batterys. This is very educational.