I bought it for one reason and one reason only - dependability. Most naysayers here and elsewhere are biased for whatever reason, usually one bad experience, or a few related bad experiences from people that limp wristed, had a poorly maintained weapon, or just simply got a bad item (it happens with everything).
My Glock seems to be pretty darned tight in all aspects, but I don’t have much to go on other than my father’s 9mm.
Glocks are notorious for loose and unsupported chambers. This enhances feed reliability. It also decreases case life if you are a reloader. Otherwise it is not an issue. If it is an issue for you, you can purchase an aftermarket barrel with a tighter chamber with better support. But doing so usually hurts feed reliability.
I have a glock 10mm.