Absolutely perfect for the price. I have a 50" TV that I chose to wall mount to save space. Decided to give this little guy a try as it's cheaper than anything I can get locally by at least $10. To my amazement, the level that came with this looks similar to a $7 on at home depot. Thing is nicer than my old one as it has spring-loaded clips to lock the TV to the mount instead of screws that you can't reach because the TV is in the way.
Now the bad. The thing did not come with wall anchors. I know, I know "you moron, why would you even consider hanging a TV from a wall using anchors." Well, I've done this with every TV I own with the exception of my 70" TV. That thing is a beast.
Went to Wal-Mart, picked up a $5 package of 90lb self-tapping anchors and went to town. That thing doesn't want to come down at all.
If it had anchors, it would be a 5 star. That being said, I'm gonna go ahead and give it a 5 star because that level proved that the floor is crooked, not my shelves.