Agree with JT BUT>>>>>>

JT's comments as well as many who rate this item highly I must say I agree.

I DID run into several installation problems that related to a tool missing from the box: A Hex wrench. The one they included was not needed, but for the pivots on the swing arms. The one NEEDED, was not included and made the work a bit confusing. As well, as the directions made ZERO mention of using that hex wrench. Ok here is the story.
There are four short, and two long [ 4" ] vice bars on the back...You are supposed to thread a screw into the four short ones, then loosen them then tighten them..BUT they don't tell you this until the end. The wrench I needed to do such wasn't included. Had devil of a time finding the correct size hex. And I have almost every one on hand....Taped the one I used to the back of the unit for later use...that bad.

If you don't loosen these vices first, you'll have a tough time puting the screws through them...
If no hex, you cannot loosen and tighten them to the cross-bars  more

Fantastic mount

This mount was extremely simple to set up and is extremely simple to use. I thought it might take 3 people to mount it but it just took 2 and that's just because of the sheer weight of the tv and mount. You can feel pretty confident that once it's on the wall, it's not coming off. It's also very easy to rotate and so forth.