This is a very strong wall mount, mainly got it due to the fact it only has 1 column to hook it up to a single stud, which looks very clean even when expanded compared to the mounts that require 2 or more studs and have a large rectangle attachment on the wall.  I actually put it into cement with my own bolts because the plastic anchors didn't seem strong enough.  The mount itself is very, very solid, currently have a 42" LCD hooked up and there's no strain even when fully expanded outwards.