I received mine just last Friday, so I am still adjusting to it, but I am definitely digging it. The colors are fantastic, and the black level is certainly better than my old 60A2000 (an SXRD/LCOS model from Sony). I need to play around with my settings some more. I'll try the ones suggested above from kingsley since my set is in a basement that can be darkened at any time of the day or night.
I've been spending too much time with 3D material (Christmas Carol, Polar Express, Cloudy with a Chance for movies and Motorstorm 3D and WipeOut for gaming) to try out some really hardcore gaming to see how lag is, but I hope to do a lot of that this weekend.
If clouding/flashlighting is brigher spots on a darkened screen, I have none of those. When the screen is paused on a black screen (like going into or out of a commercial break), the screen seems uniformly black to me. I watched Moulin Rouge last Friday night. That is a very colorful and at times dark movie, and it looked gorgeous throughout. My cheaper 46" Sony LCD TV does exhibit "brighter" spots on a black screen, so I know what to look for. This TV has none of that.
I still have Monster House 3D to check out, and I'll be picking up Despicable Me 3D next week. I have Alice in Wonderland 3D on the way from Amazon. And I still need to try the Tumble 3D game. I also want to buy CoD: BO to try the 3D on that. I'm loving the 3D on this set, but I admittedly didn't check out the Pannys and Samsungs, so I don't know how it compares to them. There are times during a 3D movie where some stuff has edge halos. I don't know if this is called ghosting or crosstalk or something else. Other times, there is a perfect 3D image, so I don't think it is my set that is causing it.
Can't wait to get Bolt 3D from Sony. My claim status has been changed to "Approved", so hopefully they'll get that out to me soon.