This is a solid mount! Definitely worth investing if you're working with limited space, corner of the room setup, or just refraining from drilling into the wall. It comes with several bolts, washers, spacers, and a Hex key (approx 35pcs of hardware - definitely more than enough for any job). The mounts themselves are sturdy. Design makes it easy to adjust from a larger TV down to small. In my case, from a 60" LG to 32" Panasonic with no problems. At its max length it measures about 19" which should be enough for majority of applications. For the quality and versatility in the box, the price seems just right.
If I really had to nitpick anything with this setup, it would be that one of the solutions to mounting your soundbar is by hanging it to the mount. In theory, this solution should work but not all bars use this type of mount. The included installation guide is OK but I feel that it could have been more detailed or at least presented multiple installation options. Ingenuity might be key, as it was with my setup. Still, 5 star mount!