Summary: First of all, Samsung has something that avsforum has been referring to as "the panel lottery". Basically, while they are still within Samsung specs, the underlying panels are made by varying manufacturers, and with differing results. The largest complaints about this monitor center around their "local dimming". It turns out that yes, Samsung has a competition crushing display, but not when you are looking at even slightly dark scenes.
Summary: The TV has a really nice picture. Black blacks, white whites, vibrant colors.. It is super thin, very nice looking with the glass edges BUT The TV suffers badly from clouding and flashlighting issues. When you watch any movie with the lights off at night it is horrible. There are big splotches of grey all over black screens. The four corners are bad also. Mine had 1 corner that was super bad. The edge lit LEDs seem to be fairly poor in this regard.
Summary: I own a lot of samsung products. I bought this tv because I consider samsung to have the best tv's. However, this model seems to have some issues. I returned the first tv to amazon because the tv made cracking sounds. It sounded like plastic expanding. It happened when on and after the tv was turned off. A new tv shouldn't have problems. They exchanged the tv for a new one. This new tv started making the same sounds and it's only 3 months old.
Summary: I bought this TV from Best Buy last month as my first HDTV after much research. Samsung's name always came up among the best TVs out there and this one was in my price range with the features I wanted. I wanted LED and edge-lit was the only option in my budget. I honestly don't know if mine was defective or if it's just normal for edge-lit LED, but I was unimpressed. The first day I had it, I noticed the flashlighting in the corners and clouding all along the left bezel.
Summary: At first this TV was fantastic, but as I watched it I notice that the picture seem a bit "choppy" on a lot of channels/programs. The Auto Motion Plus settings do not seem to do anything about this, even though the descriptions of them indicate that they will smooth the picture out. I own another Samsung LCD TV (not LED back-lit) and the picture was fine, but seemed to start to "crap out" after about 2 years (it took about 30 seconds to turn on and then the picture was...
Summary: The vast majority of the reviews I read about this model were accurate: great picture, ok sound, nice features, etc. Unfortunately the model was too new to reveal its reliablility problems. Mine failed after 5 months of use and Samsung Warranty Services has been useless in resolving the problem.
Summary: We ordered this product, in part, because of the free "white-glove delivery". The "white-glove delivery" consisted of one guy dragging this 52" LCD TV out of a van, across my dirty driveway and up two flights of stairs. I was shocked!!! The delivery order stated "two-man delivery" The TV works but shuts off and then comes back on by itself. Amazon is sending another one. The delivery company is called Pilot Freight.
Summary: I have had this tv for about a month. Purchased from Amazon sold and shipped by Amazon. They had a great price. I had a great experience with them. The delivery date was set at a week and a half, recieved it in five days. They also have great customer service, answered and resolved issues(created by myself). Great set, was considering the 650, I did some reading of reviews and ratings. Found that I did not think that the $400 more was worth it.