Summary: I purchased 2 pairs of these for our house that was under construction at that point in time. Also got the plastic templates to be attached to the framing to mark drywall openings. Easily installed after moving in, hooked up to Yamaha RX-A1020, and absolutely amazed with the quality of the sound, which is very clear and crisp. I installed one pair in the den with Polk 111 sub and the other pair in the living room with another Polk 111.
Summary: Great option if you don't want large speakers sitting on the ground. Created a very clean look in the wall and the sound in my opinion was just a good as traditional towers because the other speakers installed with it (5.1) complemented very well. Easy to install.
Pros: Good sound, easy to install, reasonable price
Summary: Got this one as a center in a 5.1 system. Awesome full sound. Worth the price. The sound is sparkley and clear with lots of detail. I had set this system up and was listening to some music before the sub was delivered and in my 12 x 15 room the sound was decently rich. More to the point, I heard a lot of nuance that was not apparent either in good headphones or my crappy old speakers. For my $ this was a good value choice.