I had an early 17. Within the first 200 rounds, it would not let off when the trigger was squeezed, no matter how hard you pulled. I sent it back and they said something was "out of spec" and sent it back, said it was fixed. A thousand or so rounds later, exact same thing happened. Sent it back, they fixed it again, and replaced the slide, said it was cracked in the breach face. Dont know about that, but it was always kind of rough with machine marks. I wouldnt trust it after that and stopped using it for a carry gun. I never really trusted it after the first time it took a dump, so I really wasnt carrying it, mostly used it while canoeing and kayaking. The only thing I really like about the Glock is the finish, I tried to get them to do a couple of my 1911's and some others, but the said they dont do it here. Thats a shame, for a carry gun, its a great finish.