Coincidentally, I happened to pick up a P22 in a trade just the other night - 1,000 rounds of cheap reloaded 9mm from an estate sale for a near-new green P22. Price was right, as the ammo was just gathering dust in my ammo closet. I would never have paid cash for a P22, but I wasn't going to turn down that deal. It'll be nice to have something else in my safe for my students to shoot, maybe even as a demo of the gun they DON'T want to buy.
It definitely feels like a cheap toy - light, made of plastic and very gimmicky. Not very confidence inspiring, especially with a high velocity round like the Stinger coming out of it. The rear sight don't look solid at all. Maybe it's my imagination, but it looks crooked and I think I can wiggle it back and forth.
Regardless, I got it to the range last night, and it performed about as expected. I put 500 rounds down the tube, about a half dozen different types of ammo. It ran through the high velocity plated stuff (CCI Stingers, Fed Bulk Pack) without a problem, but got hung up on all the standard velocity lead ammo. With the CMP .22, every other round was a FTF, it failed to eject a few times, the slide didn't stay open on an empty mag a few times, etc…
I glanced at the P22 bible, and if I get around to it I'll see if I can run a few of the reliability mods - I've heard good things from people who've done this (the guys who claim to have x10k rounds through their P22s).
Accuracy was to be expected - consistent 3"-4" groups at 30 feet.
Upon disassembly and inspection, I could see some of the points along the slide where the metal was already chipped or worn. Not a good sign.
All in all, I would not recommend this gun to anyone. I have little faith in the workmanship. The reliability issues are going to be a headache for any new shooter (especially a younger, impatient shooter), and performance is not going to be up to par for a serious shooter. It looks cool and for someone with small hands, probably feels cool, but there's nothing cool about a gun that doesn't go bang.
I'll pull the P22 out from time to time, but my go-to .22 autoloader will remain my Ruger Mk II.