I have an AUH in the tupperware that's like new--holding on to it for a friend in a retirement home (he's paranoid they'll find it and kick him out). I think he may have put a few mags through it to function test it, but I'm the only one who's really shot it--I used the slide (but not the barrel) in a class since mine has a red-dot on it.
I keep meaning to try to trade it for a LNIB gen4 since he wants a rail for some reason (I think he plans on someday putting a light-laser combo on it for some reason).
If I had the money, I'd just buy him a nice gen3 or gen4 (outside the BTF dates) and keep this one for myself...I think they look better without the rail (but then, I think they look better with the front of the trigger guard curved and the rear undercut).