I think the image is much better than the XVT I had previously. That set looked grainy in 3d, had issues with detail in dark scenes had had unwatchable motion blur and smearing.
This set looks great so far, the dimming has none of the blooming the 55 inch had. No edge light bleed and no flashlighting in the corners. The only negatives I'm seeing is the slight fast motion blur (seen mainly in games when looking around quickly) and slightly sluggish menus. I haven't had a DLL rear projection set since 2001 so i can't compare, but I've had six sets in the last two months an its the best over 50" I've had yet.