I had a Kel-Tec P11 some years ago, and it was an accurate and reliable weapon. If I had one now, I'd get the trigger shoe and try the various tricks to make the trigger a bit lighter.
I shot mine a lot, but it was one of several guns I shot regularly. It was the gun I carried when I carried, which was infrequently.
I even tried the P-11 in an IDPA match once. On the first string, it took me several shots to readjust to the trigger (I shoot other guns far more often, and hadn't shot the P-11 recently). My first string was a disaster (in elapsed time and misses). I shot it quite well during the rest of the match, and had it not been for the first string, I could have bragged a bit. I got to thinking: if it's not the main gun I shoot at the range, I may have the same problem if I ever have to use it while carrying -- and I don't want to mess up my first two or three shots. I traded it away for a very nice .22 rifle (which I still have and love).
I have NOT had the "first shots" problem with my PF-9, so it's now my most-carried weapon. My first shots with it were often better than subsequent shots, as the recoil and snap took their toll. The folks I've known who carry the P-11 and shoot it regularly don't have the problems I had -- or maybe they're just better with handguns.<grin>
I have also picked up a Kahr CM9 (in trade) which is arguably a better gun, but I keep coming back to the PF-9. (I had a Kahr P-9 which I liked a lot, and loved the trigger, but someone made me an offer I couldn't refuse, and I didn't -- one of the few guns I actually made money on when I sold it.)
I have exchanged messages with Kel-Tec over the years, and last year they said that a P-11 style gun using the PF-9 trigger mechanism was on the drawing board, but said it may be quite some time before we see it. THAT, to me, would be almost ideal: the P11 grip and frame, and the PF-9 trigger (which I find MUCH better than the P11 trigger.)
In the meantime, I'm still waiting for a PMR-30 -- and I'm now using the KTADDONS grip material to help tame the PF-9. (I've used that grip material on a P3AT and Ruger LCP, too.)