I've begun the repair process on mine. I've had the set almost a year now, and been dealing with horizontal banding, which hasn't been to bad. But it's getting annoying now. Any time there is vertical camera movement you can see the variance in brightness across the entire screen, mostly murky colors, like grey, light browns, greens. On top of that getting some minor flash-lighting at times on the bottom left side/corner. Which is really odd cause it's flash-lighting at about the height of any wide screen bars, and that's with cinema black on.
I know my buddy had worse issues with his, hopefully a new panel fixes the issues otherwise I hope I can get this thing exchanged for an ES since all reports indicate that those sets have a much more even picture.