I just ran about 40 rounds through a used LC9 I just bought. I really, really like it. It was pretty accurate for me, despite the long trigger (I'm a novice semi-auto shooter). It also handles really well, as I was somewhat concerned with recoil. It was fun to shoot.
My only real concern is the 9mm cartridge. I've owned +P .38 special revolvers in the past. Those instill confidence in personal protection when you shoot them. The 9? Hmmm... I dunno. Maybe it's the Blazer Brass 115 grain I was shooting through them? I suppose I should do some research on finding the right self defense round for these.
Anyhow, I was hesitant about the LC9 because of this and some other threads I'd seen around the interwebs. My initial impression is that this is a fundamentally very well-made weapon that may need a little tweaking or TLC to be it's best (sight issues aren't anything a little loctite can't fix, if you know what I mean). Don't hesitate.