I recommend this product. The only problem I had was trying to get a tight fit when bolting to the stud. There needs to be more clearance from bolt head to edge of bracket to allow for the socket of the socket wrench to tighten the bolt.
I was surprised at how nice the quality was on these mounts. They're just as solidly built as the $40-60 mounts found in retailers. They're quite easy to install, with nothing out of the ordinary to complicate the process. Only complaint is that it's a bit of a challenge to tighten the bolts to achieve desired tension on the tilt/swivel. I've got all 5 of these pretty much how I want them, but I'm betting I'll have to keep the allen wrench handy to tighten them.