I purchased this television earlier this year after a lot of looking at various other makes and models. What drew me towards this product was at the time Samsung had recently won an award for the best quality LCD TV. I like this TV as it was smart looking, and appeared to have all the features I required, such as built in freeview, scart sockets and also a lot of ports on the back for my laptop, home cinema system and games consoles. The majority of the time I do not have any problem with the picture on this television although it does appear to have an auto contrast feature, which can be quite annoying, especially when you are trying to watch a program that has a dark picture as it appears to make the picture darker. I have looked through the settings several times to see if there is a way to switch this off with no joy unfortunately. I also find that the guide does not update so the majority of the time you try to check what is on and it is still an hour behind.
As for the general picture quality it is very good for a 720p and I have not had any problems with any other features.
I would recommend speaking to somebody in the know about these issues before purchasing this product.