I have a PF-9 and an earlier iteration (no frankenbolt) of the P-32, both in hard chrome. I also had a P-11 which I gave to my brother. None of them are what you'd call perfect guns.
The PF9 can't handle 147 grain bullets due to having a short throat; this is even with the newer design barrel that was supposed to correct that and other problems. The magazine follower is made out of some kind of cheap polymer that is in the process of self-destructing. The magazine catch also has a reputation for failure. So, I ordered a metal follower and magazine catch from a guy at KTOG; but they weren't inexpensive and added almost $100 to the cost of the gun. That makes it somewhat less of a bargain.
The P-11 has a godzilla trigger pull and no amount of fluffling, buffing, and shooting ever made it any better than terrible. However mechanically accurate that gun may be, it always has that trigger working against it.
The P-32 had some reliability issues and I ended up having to send it back to Keltec for some of their much-praised customer service.
OTOH, the PF9 and the P-32 have pretty decent triggers for DAO guns. When fed lighter projectiles, the PF9 has functioned just fine. The P-11 always functioned well with whatever I put in it. Since its return from the factory, the P-32 has been a reliable little gun. The P-32 and the PF9 are remarkably thin, flat and concealable. There are very few guns that can compare to them in that respect, and none that are in their price range.
I give Keltec a qualified thumbs-up. Many people have problem-free Keltecs straight from the box. More than just a few do not. If you get a good one, or have Keltec fix a bad one, they are okay guns. IMO, when you spend the extra money on a higher priced brand, what you're paying for is a much better chance of getting a piece that will work (and work well) straight from the box with no fiddle-farting around or trips back to the factory.