I installed 4 of these in my inlaws' home in different rooms. All went smooth, and are very sturdy. Used for a 42" older heavy tv, a 65" new / light tv, a 50' newish mid weight tv, and a 55" old heavy tv.
There is a ton of hardware included (spacers of different sizes, screws of different diameters and lengths, etc). Very simple design - easy to install, easy to remove the tv after it's installed. Reasonable price for a simple, sturdy product.