I tried it back in June, and the one I got to try was powered - but they put in batteries so we could get a real feel.
The new triggers look a bit odd, but felt fine - and I really like the haptic feedback. It's a little discerning at first - like you aren't use to it and it's a bit intense. But I think most people will love it after a while and it will be a new standard.
Here is my original thread about it: http://gamrconnect.vgchartz.com/thread.php?id=162150&page=1







