We just finished setting it up! It's a very nice piece-- thin for places with little space. The instructions could have been clearer, but we did finish putting it together in a few hours so not too bad. It is a two-person job though and very heavy, so be prepared!
One thing that definitely surprised me is that the adjustable side pieces are not attached at all. You just move them manually, no tracks like with drawers, nothing. They are completely separate from the main part of the entertainment center, which I found weird.
Despite that, I do love the way it looks and the option to adjust the length of it at all!