I have a g19. I really like it because of the confidence factor, I know if I pull the trigger it will go bang!! I've only had one failure and it was ammo, the primer had an indention but didn't go off for some reason. I've tried to limp wrist it, and when I'm shooting for awhile I tend to get relaxed and limp, but it's never failed to go bang. My only complaint is the sights. I don't get nice tight groups. For a defence situation though it's plenty good enough.