while i don't personally own an SR9, a friend of mine brings his every time he comes by to do some shooting out back.
that said, it seems like a decent pistol. it's pretty reliable (only a handful of FTE's) and pretty accurate though my friend thought he was a genius and screwed the sights up a bit and can't seem to get 'em back quite right.
the only thing that i don't like about it is the feel of the grip. for me it's a bit too thin but that is just my personal preference. maybe putting a Hogue Handall on it would help, but then again it's not my gun.