I have one. It has been 100% reliable with full power ammo. It didn't want to cycle some light target loads. Trigger sucks and the gun is so light that accuracy isn't close to something like my Ruger MK-2 target pistol.
I recently picked up a Sig 322. The jury is still out about reliability. I had some issues, but I'm thinking it was ammo incompatibility and not necessarily the gun. I need more trigger time to decide. The trigger pull weight on my scale is the same as my Smith, but it is a crisp single action feel unlike the Smith which feels like a DAO Glock type trigger. The Sig is much more accurate. Price is about the same.
Accuracy isn't the highest priority. What I'm looking for is a S&W M&P in .22 LR that will be as close as possible a duplicate of her M&P .380 ACP self-defense handgun. If she can rapidly empty the magazine into a 6" circle as 15' it will meet the accuracy requirements. She can't afford to practice enough with the .380 ammo on her salary as a museum archivist, but would be able to do so with .22 ammo, since I have 40K rounds of .22 LR on the shelf and could gift her 10 bricks to practice with.
She has 2 S&W .22 LR pistols to practice with, a 622 and a 2206, both with 4.5" barrels, but they aren't physically the same as her M&P in 380, so practicing with either of them isn't getting the muscle memory that I think that she would get with an M&P in .22 LR. I hope that she never has to shoot an attacker, but I'd like for her to have the tools and the skills to do so if it happened. If you're the father of a daughter you'll understand my concerns and about the safety of a single woman living alone.