The ZHDTV1 is an excellent set-top antenna as long as you live relatively close by your local TV stations.

I live in the Buffalo, NY area and within 10 miles or so of all my local station's transmission towers. The antenna picks them all up from one aiming position, except one of the minor networks is weak unless I move the antenna.

The ZHDTV1 is very sensitive to movement and allows horizontal or vertical antenna fin orientation (it does make a difference). Even moving the antenna 1 inch one way or the other can make a difference in the signal strength you receive. I found one good position for mine and it works great in my apartment.

I highly recommend the ZHDTV1 antenna as long as you live within its reception range.

I works fine but mine came apart and wires inside snapped off their connections. It couldn't be repaired. I suggest that once you assemble it, don't try to take it apart for storage.

I have owned this antenna for three years and used it for receiving UHF channels along with another anntena for the VHF channels. I got to test the HD reception using this antenna only recently.
I get all the major HD channels on UHF with this antenna around 40 miles from the tower farm in Houston. The only HD channel I do not receive is local PBS affiliate which broadcasts on a low power VHF channel (8.1/9). I placed the antenna in the attic and it picks the signal though our house is in a pine forest to the north.

From my second story bedroom, this antenna gets reception from 35+ miles away with a hill in the way less than 1/2 mile away. It doesn't seem too directional to me. Aim it at the weakest signal and you'll probably get anything less than 30 miles away.

This antenna can pickup most of the digital channel signals within the 30 miles range. However it is very directional. If you get your HD signal from two towers pointing in different directions you might have to adjust it back and forth.

Here are the channels it can get:

* yellow - uhf KKPX-DT 65.1 ION SAN JOSE CA 299° 31.3 41
* yellow - uhf KBCW-DT 44.1 CW SAN FRANCISCO CA 304° 35.4 45
* yellow - uhf KCNS-DT 38.1 SAH SAN FRANCISCO CA 304° 35.4 39
* yellow - uhf KCSM-DT 43.1 PBS SAN MATEO CA 304° 35.4 43
* yellow - uhf KGO-DT 7.1 ABC SAN FRANCISCO CA 304° 35.4 24
* yellow - uhf KBWB-DT 20.1 IND SAN FRANCISCO CA 304° 35.4 19
* yellow - uhf KPIX-DT 5.1 CBS SAN FRANCISCO CA 304° 35.4 29
* yellow - uhf KTSF-DT 26.1 IND SAN FRANCISCO CA 299° 31.3 27
* yellow - uhf KTVU-DT 2.1 FOX OAKLAND CA 304° 35.4 56
* yellow - uhf KFSF-DT 66.1 TFA VALLEJO CA 304° 35.4 34
* yellow - uhf KQED-DT 9.1 PBS SAN FRANCISCO CA 304° 35.4 30
* yellow - uhf KMTP-DT 33.1 IND SAN FRANCISCO CA 304° 35.4 33
* yellow - uhf KRON-DT 4.1 MNT SAN FRANCISCO CA 304° 35.4 57
* yellow - vhf KNTV-DT 11.1 NBC SAN JOSE CA 299° 31.2 12
* yellow - uhf KDTV-DT 14.1 UNI SAN FRANCISCO CA 29° 12.1 51
* yellow - uhf KSTS-DT 48.1 TEL SAN JOSE CA 29° 12.1 49
* yellow - uhf KICU-DT 36.1 IND SAN JOSE CA 32° 11.7 52
* yellow - uhf KTFK-DT 64.1 SAH STOCKTON CA 354° 35.7 62
* green - uhf KTEH-DT 54.1 PBS SAN JOSE CA 32° 11.8 50
* lt green - uhf KTLN-DT 47.1 IND NOVATO CA 315° 62.0 47
* red - uhf KSMS-DT 31.1 UNI MONTEREY CA 132° 26.6 31