My brother bought a P22 about 6 weeks ago. The grip is very small, even for my small hands. I wasn't overly impressed with the accuracy...it's on a par with my Ruger Mk.II, but it is an interesting pistol, that's for sure.
One BIG problem started almost right out of the box, however.....there is a roll pin that goes across the rear of the slide right at the thumb safety. After only about 20 to 30 rounds fired, the rollpin will start to 'walk' out of the slide to the left. This jams the safety and jams the gun. Not good. Walther insists that this is unheard of, but our range's Range Warden has exactly the same problem with HIS new P22......
It seems to be fussy about what ammo it shoots....it wouldn't feed T22's at all, but strangely ate up Blazers like crazy....it does seem to prefer the expensive .22 ammo though, like Eley and Dynamit Nobel.
Mike