I originally bought this for a Sony 40" TV, but installed it with a Vizio 42" instead.  I did this because the Sony is an older model TV and weighs a little over 50lbs (which is still within this mounts rating) and the Vizio only weights 23lbs.  I have a Sanus extended articulating mount that I bought a few years ago and paid over $100 dollars for it.  (It now costs over $150) The Sanus is much stouter in construction than this VideoSecu mount is, so by reading some of the reviews on here and not knowing exactly how this mount was going to measure up pre-install, I swapped out TV's to match mounts accordingly.