Bought this to hang a 50" Samsung plasma tv. The TV was purchased in 2008, so it's quite a heavy TV. I used the supplied mounting screws and some of my own screws to secure it to the wall. It's been up for a few months now and it is rock solid.
The price may put some people off, with it being so much cheaper than other TV mounts you can buy, and i must admit when I opened the packaging and looked at it; I didn't think it would be able to safely support my heavy TV. However I was wrong to doubt it, it really is a solid piece of equipment.