Just bought this set about 5 days ago. So far I'm fairly happy with the purchase. Still have to run through a couple of tweaks to get the picture settings to my liking. I'm very picky when it comes to picture quality when viewing HD Programming and I hate seeing grains in the background.
Only issue I'm honestly coming across if the brightness. Given, I had an LCD before and I know the LED's aren't necessarily as bright when compared, but I still feel the picture is dull. I set the backlight setting to auto and it honestly seems dim. Mess around with brightness, contrast, dynamic contrast and all that and still can't get it. Maybe it's just me and it takes some adapting. I compare the brightness I'm getting to a movie theater.....which is fine when you're watching TV in the dark...but throughout the day it can be annoying....at least for me.
I know I'm extremely anal when it comes to stuff like that.....but honestly this is a tremendous TV. I haven't messed around with too much 3D as of yet. I am going to say that the 2D-3D conversion is pretty dam good. Not a huge effect like movies that are filmed in 3D....but it's honestly pretty dam good for watching standard programmings or sitcoms. My wife is a FRIENDS fanatic and watched her entire blu ray season in 3D. When it comes to actual 3D movies you might have mixed results. Transformers Dark Side of the Moon does a pretty good job with the 3D and the TV handles it well....minimal shadowing. On the other hand, I popped in FINDING NEMO 3D and saw a massive amount of shadowing. Here's the difference....Transformers was shot in 3D and Finding Nemo was a studio conversion. As I continue tinkering I'm going to mess around with real 3D titles like Avatar and so forth to see how the overall picture compares.
Good TV, good features and honestly a tremendous price. Got mine for $1499 at Best Buy with 6 glasses.