I just got back from the range. I put 400 rouds through mine, 300 115 grain RN, 50 124 grain HST and another 50 147 grain HST. I had no malfunctions of any kind while firing it. It failed to go into battery 3 times in the first 10 magazine changes, but I noticed I was riding the slide. I stopped riding it and had no other issues. The recoil was not bad at all and accuracy was good. My Shield 2.0 is more accurate, but all 400 rounds from the Sig were in center mass at 21 feet with me firing as fast as I could without getting kicked out of the indoor range I was at. My only negative is how hot the bottom of the slide was. By the 400th round it was too hot to touch. I've never experienced that before. I did check the spent brass and noticed nothing unusual in regards to the firing pin dragging on the primer. There was a little drag, but nothing you'd notice if you weren't looking for it.
Mine was manufactured early this month and was part of the third generation or batch, or whatever you want to call it. It's my first day shooting it, but based on what the owner at my LGS told me in regards to Sig addressing their early problems and what I see with mine I'm confident carrying it.
Well, the club I belong to finally met yesterday and a member brought along his Late model Sig to compare with other members Micro 9mm's. We shot quite a bit of ammo. Mostly steel targets and one paper target set at 7 yds. All the shooter's were very active members who shoot frequently with a lot of experience. . Overall assessment seemed to be that the Sig is a nice shooter, but over hyped as far as handling and general performance. Every one in the group did well at the 7 yd paper target. But a common feeling was that the gun was a mild shooter but a little snappy to very snappy. Of course this would go from members shooting predominantly their own primary weapons. The snappiness would be more evident the more you shot it. If you are not doing extended range sessions it should not be a big factor. My self and another member felt it shot very similar to a Ruger LC9S but with a little less recoil and not quite as snappy as the Ruger.
Most felt the gun did very well at close range, but less than stellar performance at longer ranges (15-20yds) compared to some of the other guns. (but remember, these are close combat range guns anyway)
Reliability was excellent. We shot approx a thousand rounds of mixed ammo and only had 4 failures and those we felt were user error. We believe that came from
possibly riding the slide stop. You have to be aware of how close your thumb is positioned near the receiver. Mine would ride slightly on it no matter what I did, however it did not seem to be enough to effect the shooting. I doubt I could wear gloves and shoot the Sig.
Everyone liked the sights, the trigger, and loading the mags was very easy to do without a upula etc. The mags themselves did not look like very good quality but they functioned fine.(I did have some concern that they would hold up for a extended amount of time) The most critical shooters were from two members that own Glocks. Lol, I predicted this. *I have a feeling the mags are Prototype and a better quality mag will come out at a later date. Just speculation.
I really liked the gun, however just not the gun for me. The gun felt very light even though it weighed approximately the same as some of the other guns, but just did not have a very solid feel to it. especially when shooting. I came home wondering if there was too much weight in the bottom of the gun vs more weight needed on the receiver especially with the extra rounds.
At that of course will be with any shooter to find the perfect gun. One lady in the group loved this gun and said she was going to purchase one after shooting it. She especially loved the grip and she performed very well at the 7 yd target.
So in conclusion, I think Sig has a real winner, that will be a great gun for many shooters.
But like all guns, a shooter should rent or borrow one if possible before purchasing. Reviews or feeling about any gun are subject to bias and subjectivity.
One size never fits all.