Well, i bought a couple of these to set up a wireless bridge. It cost just under $100. In order to set one up as a station and the other as an access point, I had to download and update the firmware.
After configuring them and setting them up at the end of each building, I powered them on. They are designed to broadcast up to 18 miles, so signal meter was maxed out (I measured the distance to the shop, and it was 1600 ft.) I backed the gain off until I had good signal, but wasn't cooking the neighbors with microwaves, and it works perfect; even through the snowstorm we had a few days ago. I guess the ones I bought were really too big. The make smaller ones.