Disappointed gun. I've never fired one but handled one of the early ones. Okay ergonomics but not a very well-conceived gun. The safety, which was supposed to be optional, is in one of the dumbest places you could have it; on the back of the gun above the beavertail area. You switched you left/right to put it on/off (can't remember exactly which way went which). Anyways, it reminded me of switching the vents on/off for the AC in your car. Supposedly designed that way so you could see it's status when looking down as it's holstered but suppose the gun isn't holstered?
Kind of thick for a CCW gun. Magazine disconnect - yuck! Something no handgun should have. Sure, you can drop the mag and render it useless if a perp is trying to take it away but that's a fine motor movement to hit the mag release and I think you'd be better off spending the calories to hold onto the gun, attack the perp back, or better yet, don't let them get so close.
Rotating barrel. Interesting concept, found on the Beretta 8000 series and Colt All American (we all know what a stellar piece that was!) I think Beretta is the only one to have some longevity with the rotating barrel concept so far.
A magazine article outed that the gun was not inteded for a lot of range shooting; to be kept and carried a lot, shot little. Whatever, nevermind that one should practice with the gun if they intend to possibly use it in a situation. Embarassing that SIG even put their name on this gun.
Like another poster said, get a Sigpro; not my fav but much better than the Sig/Mauser. If you want a Mauser, get a broomhandle one. Personally, I'd hunt down a used or PD trade in P-series Sig.