If you Google or Bing for reviews you seem to get a variety of responses. At their site the reviews are all glowing, no negative. That seems a little odd to me. I found this site and while some were still glowing, others were at the other end of the spectrum.
Tadi Brothers reviews | Customer reviews of Tadi Brothers | www.tadibrothers.com
Personally, I'd prefer a camera that was available from other outlets, like Amazon, where I can get a whole host of reviews.
I'd like a camera for the back of the AS, the mirrors just don't seem to be enough, especially when backing. So much could be hiding back there. So far, the wife with a walkie-talkie has been my camera. But I've done some research and I've got this one on my short list, seems to have decent reviews and is about half the cost of the one you're looking at.
YADA BACK UP CAMERA
They don't seem to be in stock at the moment. It says the operating range is 50'. I don't know if it can be hardwired or not.