Have had the 55" model, since Nov. of 2013, so far very happy with it. The screen can be a pain in the ass as it flickers on dark scenes, from what I read that is dependent on the backlight setting, Samsung should find a fix for that. I thought initially there was a problem with the picture quality as the amount of grain on blu-rays was very noticeable, however after doing some reading it varied depending on the movie quality. The one thing I will never understand is why is Samsung's internet-based functions of the tv tied to their server? When the Samsung site is down, none of the Smart apps work. I also have the 46" version, very happy with that as well, and both sets are lightweight for their size.