Well, from my personal experience, I can tell you mine had problems right out of the box. Couldn't even fire a shot.
The problem was the lever in the frame that depresses the plunger in the slide for the firing pin safety wasn't pushing far enough, therefore not disengaging the firing pin safety. Sent it back to Sig for repair. When I got it back and was able to actually fire some rounds, I had numerous FTF's. Lucky if I could get through a full mag without having at least one FTF. Sent back to Sig again. Had the feed ramps polished. Now it runs pretty good.
The thing is, why wasn't the gun checked over the first time I sent it back? Sig paid for the shipping both ways, both times, which is good because it probably cost over 250 some dollars, but it's pretty frustrating to have a new pistol and have all these problems.
My choice was between a Springfield Loaded or the Sig GSR Revolution. I definitely made the wrong choice. Prior to buying I did quite some research and came to the conclusion that the problematic Sigs were the original ones made with Caspian slides and frames. Supposedly the newer "Revolution" models were trouble free. Well, my experience pretty much proves that wrong. I don't know how they are doing now, but I would never buy another one, not even for $500. Seems like they are very hit and miss. The good ones being really good, but there is a good possibility that you may end up with a bad one.
I can say that if you do end up with a good one, I think you'll be very pleased, but are you willing to take that chance?