I've owned one of these for over a year now and I'm very happy with it. It's mounted under a 55" TV, which is about as big a TV as you'd want associated with this speaker. I may switch this out for a longer bar in the future, but I'm satisfied with it for now. Like others have said, it's a nice & heavy unit and is solid. The sound is fantastic in my 5.1 setup powered by an Onkyo receiver. Speech is crystal clear, and there is no comparison between the sound of this speaker and my TV speakers. My only suggestion for a design change would be to place all the wire connections in the back in one place (the middle), so that running speaker wires into the wall would be a little easier. The wall mount bracket is solid and easy to install.
Looks like there were some buyers who bought this without knowing what they were purchasing and gave a good product very bad reviews. Going by the review dates it appears they took advantage of the recent lightning deal and didn't do any research. Please realize that this unit is a LCR (left-center-right) speaker bar. It is completely passive and needs to be connected to a receiver ("stereo") with speaker wires. It will not simply "hook up" to your TV--it's intended to be part of a home theater system.