I'll be a spoiler here. .......
When I decided to buy a .22 pistol , the P17 was on the list very briefly. The slide design is kinda bizarre. I didn't care for the internal hammer, screwed together frame, 16 round grip, polymer mags and action parts. That's how it weighs 11 ounces and lists for $200.
One plus for can users, threaded barrel. One plus for those that like optics, there's a slide with Crimson Trace red dot mounted for
another $200, with a notch that co-exists with the included raised front sight. No re-zeroing if you swap slides.
For me the Ruger SR22 was the winner, so much so that I bought a second one a week later. Almost $500 OTD, but I think I got what I paid for. Only the frame, front sight and rear sight base are polymer. Steel chassis. Exposed hammer for re-strikes, or cock and lock. Loading buttons on mags, both flat or pinky base plates. Two grip sleeves. Ten plus one and 17 ounces is good for me.
Negatives - Magazine safety; manual safety is reversed, Down is Safe. It is a hammer block decocker type.
Options - You can get a threaded barrel model, or buy the barrel separate. Long slide model, extra inch.
It's not designed for optics, which I don't do on handguns anyway. The three dot sights are nice, you can get FO sights.
Kel-Tec review by my favorite guy -
SR22 review by my favorite guy -