I have purchased this mount twice now - one for my bedroom TV, and one for my living room TV.  The bedroom TV is a 35" LCD, and the TV in the living room is a 55" LED.  (Surprisingly enough, they both weigh 50 pounds...)  This mount works very well for both of them.  It's relatively simple to install - you just need to find a stud and screw the support in to it.  (I will admit that my bedroom TV has been attached not to a wall stud, but a jury-rigged support brace on a cabinet.  It's still there and attached after 6 months.)