Have had it on for about an hour now and I'm impressed!
3D is the best I have ever seen! There is absolutely NO CROSSTALK or GHOSTING visible. Even one of the best 3D titles I own (Despicable Me) had some ghosting visible on my other Panny plasmas (especially the title), not here. Of course poorly produced 3D will still look like crap, but the good ones will REALLY look great on this projector.
In my almost completely dark "man cave", I'm using the 'cinema 1' setting, eco lamp mode, and 'light' for the 3D glasses setting. I don't think that most people will find the 'normal' or 'dark' mode to be very pleasing, at least I don't.
Set up was relatively easy, especially if you've already owned a few Panasonics like I have (the 900 and 2000). I HATE the joystick lens shift adjustment, but it should only have to be set once, and as long as you don't change the positioning of the projector, you shouldn't need to touch it again. So far, everything else that's setup related has been a joy.
Those worried about the built in 3D emitter's range will be happy to hear that (at least with my setup: approx. 17' throw to a 120" Wilsonart Designer White screen) the 3D effect is not lost even when sitting 15' back from the screen. I have the built in emitter set to 'strong' and the lens shift cover off.
Of course these are only my very first impressions, so I'll have to really give it a workout later tonight. Will check out a lot more 3D (both Blu Ray and cable) as well as 2D.
BTW, mine was delivered by FED EXP (overnight service). It came from Memphis, TN.