I myself dont have one and prefer my Glocks. I have literally put thousands and thousands of rounds over ten years through my G17 and have never had a jam, a glich, or any problem whatsoever. Best $500 I ever spent on a gun.
good call on that. I had some glock misfires in the very beginning, when I was 20 years old and just learning to shoot - it was entirely due to me limpwristing the thing.
Haven't had a clock jam in my 12 years of carrying, since then.