3D works very well, both in PC source (HDMI) than via USB. The outline is very thin, unlike my old TV (LCD 5 years) and almost regret not to have taken, the size above.
For the DualView, the fact of seeing a game, normally in split screen on the screen in full screen, works well, for against, it was a bit of persistence of the other player, in contrasting strengths zones ( white box on black screen ...) a little annoying, but not dramatic.
The recording mode works well, via an external hard drive, it will formatted previously. By cons, you have to chain you look (or turn off the TV) no double tuner.
-> In short, very happy for the price and the final rendering
