I own a PF9, fired about (300 rounds) of various ammo including Hollow Points. It has never jammed. I did buy it brand new and it is the latest generation. That might make a differance. I would trust my life to it, but admit firing more than 50 maybe 75 rounds at one time, it kind of bites or irritates the back of my finger.
Yeah, it certainly doesnt lend itself to long shooting periods comfortably. Thats why i always make sure i take it along for any range session and make sure to run a few mags thru it.