I bought one of these guys from Target a few weeks ago to replace my old beast (Sony 53HS10), and so far I like it a lot. I did have the Netflix app lockup a few times and had to power the TV to get it working again, but aside from that I've had no issues.
I do have a question about using it as a monitor via HDMI. I have it set as 1920x1080, but it leaves about a 1/2 inch to 1 inch black border around the entire picture. If the TV displays 1080 as a full screen when watching shows, why doesn't it use the whole screen when going through my PC? I'm not sure if there is a setting I'm missing, or if it is supposed to be like that, but I haven't found it mentioned anywhere. I also have a 46inch Sony I use to stream videos from another PC and it runs the same 1920x1080 resolution as a full screen.