I've got the two tone w/black grips. Mine was one of the first out. Serial # in the 800's. "back in the day....we didn't have them fancy choices". Initially, I had issues w/it returning to battery. This varied, based on ammo, but it was unsatisfactory w/any and all ammo. Sig customer service was fantastic. Gun back w/in the prescribed 7 days at no cost to me; Every spring replaced. Not a hiccup since then and that's been hundreds of rounds. Close to 1k I would expect. I load my own so availability hasn't been an issue in 380. They build these little buggers very close to spec so breakin is an absolute IMO. I pocket carry mine in a cheap Blackhawk #1. I'm not particulary gentle with it and it has no wear marks at all. I checked it carefully prior to typing this.
The premium that they ask for some of the finishes is not worth it IMO. You're already paying a premium for the Sig name (though I'd do it again... I think it's worth it). The rainbow?..... nough said. My little basic model is just fine. Yeah, I might change out the grips someday.
These guns tend to like hotter loads, particularly in the breakin period. Go for 95-100 gr if you can get it. 90 gr isn't enough in most of the 380's early, at least that's my observation. Even my wifes Bersa didn't like 90's when it was new.
If you're going to carry a 380, and there is certainly question about that, I believe this is the one. I won't go into all the why's, we all have our opinions. But for a quick summer gun, it's great. They shoot surprisingly well in terms of accuracy and they're quite comfortable to shoot.