I'm fortunate to have built-ins. The pull out shelves are OK, BUT my equip is heavy, so wiring is a bit tricky. Pain in the ass actually. That top Mac-Daddy (as my wife refers to it) I gorilla glued the rollers to the side wall and used sheetrock screws (also glued). This does not move out, so if I need to remove the MAC Daddy, everything from the top down has to be removed first.