So, I'm not exactly an expert here, matter of fact I'm pretty much the opposite, having only shot a few handguns in two sessions, but I am going to attempt a user comparison between two pieces that I waffled back and forth on buying, nonetheless. When doing my research on each I went to a few places looking at them and asking the shopmen what their opinions or what they'd heard about each were. The LC9 was still pretty new, so user experiences were almost nonexistent, however, as an in general statement, each person I talked to seemed to prefer the Ruger brand, at that price point and in that category, for one reason or another, however slight that preferrence was. The common thought was that the Sigma had a heavy trigger, which upon use I found to be utter crapola. Also that it tended to be more particular with ammo, which very well may have been the case, as the one I used jammed up with just a few Blazers, but I'm not absolute as it continued to jam even after emptied of them. My findings are that the Ruger, possibly because of the smaller size, had a lot more recoil/kick to it. It was, as my friend put it, quite a bit snappier. When holding, each shot would buck the grip hand out of the brace hand, even with interlocked thumbs (I call it interlocked but really the brace is just tucked inside the top of the grip, enough so to get a hold for added stability). This was not just cause for annoying readjustment each shot, but also longer intervals between rounds fired. Of course this all could be due to a lack of a stronger grip from a less experienced user, however the exact opposite was true for the Sigma. With the S&W 9mm every shot was smooth and it was effortless to squeeze off rapid fire shots with reasonable accuracy. The recoil was almost nill, bucking no more than a lame left-hooved horse. And because of the heavier frame it fell right back into place, making target aim a pure breeze. Now the gun did jam, and I haven't a clue as to the cause for sure, but it too was an older gun, having fired over 1000 rounds already, and it hadn't been recently cleaned, so I'm not going to count this against the gun. Another thing to consider was the considerably larger mag capacity shooting double the rounds and having to reload half the time. As far as shooting enjoyment goes I preferred the Sigma, but not by as much as you would think. There's something to say for the cool, manly kick from such a cute li'l "nina". In the end I don't regret my decision going with the LC9, however had I the opportunity to've shot them both before purchasing, I'd've definitely gone with the S&W.