I took my new PF9 out today to run several mags through it and get a feel for the thing. It's often mentioned that shooting micro guns such as these are akin to having a firecracker go off in your hand. All told, I ran about 10-12 mags though it (70-80 rounds).
I started off shooting 115gr Federal Champion and moved on to 124gr RWS. The RWS is a nice round because it's pretty darn close to NATO 9mm and is a stout enough round that it really breaks in a brand new 9mm right. I found both rounds very shootable and accurate enough for what you'd expect from this gun. At 7-10yds I was often landing an inch or two high of POA, but could pretty easily keep the shots within about a 6" circle. I'm not yet capable of tightening the groups beyond that (this is my first subcompact experience).
Then it was on to JHPs. I left the heavy stuff at home, as I can't see ever running anything too hot through this. I shot a mag of Hornady 115gr Critical Defense (standard pressure), which seemed pretty well in line with the FMJs as far as handling. Zero issues. Next up was a mag of Corbon 90gr +P High Velocity. Performance and cycling were fine, but quite snappy. The Critical Defense will be the go-to load here.
At least ten magazines run though this thing with zero issues. Everything fed perfectly, and all but the +P were quite manageable. The trigger sucks, very long and very heavy. No other way to say it, but that's by design as this is exclusively a carry gun.
Then I broke out the Sig P226 (nightstand gun) just to see how well my rail mounted laser/tac light was sighted in. Well, the group size dropped by about 50% and I felt like I just had stepped out of a Geo Metro and slipped behind the wheel of a Cadillac.
PF9 first impressions:
Performance: Accurate enough and zero failures.
Function: Oustanding. Very concealable and just tame enough to be quite practical.
Value: Again, outstanding. Kel-Tec understands their place in the market. A really good budget carry option.
Recommend?: Absolutely, so long as you understand what you're getting. This is exclusively a carry gun. It's not a go-to home defender or extensive range shooter. It's a gun that allows you to have something available even when it's inconvenient to carry.