One of my neighbors that I shoot with has an M9A1 and I've shot it a bit. He's had it for quite a while so it's probably a Gen3 model maybe even a 2. It feels a bit like a HiPoint pistol in my hands, not a fan of the overall feel but that is a personal opinion. The owner is a big Walther P38 fanatic and has quite a few of those he shoots regularly so maybe that's why he likes the odd feel of the M9A1 so much. For him he says it feels great and fits him perfectly. Reliability wise I've never seen it jam. I do remember it being tight when racking the slide, but I also remember him feeding it plain WWB and Federal Champion 115gr on several occasions with no issues. I also remember it having a wonderful trigger. In fact probably the most memorable thing that I will retain about shooting his M9A1 is that it had a great trigger, and that lends itself to it being an accurate shooter.