Fun gun, but some considerations for you.
I have had a Walther p22 for many years now, and let me say that it is a fun gun to shoot! But a couple years ago, while out shooting, the hammer spring snapped and would no longer function. This was a cheap fix, but I didn't know enough about the gun to fix it myself. I have heard of others having the same problem as well.
Another thing is that my p22 does not like to he dirty. I have to thoroughly clean it after each shoot, especially the feed ramp where the bullet slides into the chamber/barrel. If the feed ramp is not clean, the gun jams every other trigger pull. This may partly be from the ammo. .22 ammo is often one of the dirtiest small arms cartridges out there. You may want to avoid the real cheap .22 ammo and spend a few more cents on higher grade rounds.
All in all, I love my p22! It's fun to shoot and looks cool too!
Sorry for the long post. Hope it's helpful.
=Fluffy