Just spent an hour in the G2 with Jeff at EBG. I have about 150 hours in the R44 (and 1600 fixed-wing), this was my first non-R44 heli flight.
I thoroughly enjoyed the flight. Overall it was easy to fly, no big problems. My right leg ached by the end of the flight, it really does take lots of right pedal. The one thing I really didn't like is the sprung-to-idle collective - if you don't hold it ALL the time, and pay attention, you suddenly realise you're hanging in there on 40% power. It happened to me several times and even when you've got the hang of it, it takes constant attention. Can't imagine why they did it this way vs the stays-put collective of the R44.
The engine display is really nice, much clearer than the steam-gauge instruments on the R44.