I can't speak for the PPK, but I own a PK380 and its a total piece of crap. I've had nothing but trouble with failure to eject. I've tried several different brands of ammo and sent it back to Walther for service. It's better but still junk. I'll never buy another Walther...
Welcome to the forum! There are quite a few ladies that shoot on a regular basis at Cresap. If you're looking for help as a newbie, you've come to the right place. There's a wealth of info here.
The CZ-52 is a great piece and they can be had through Czechpoint USA. They have them available in pristine condition and at one point, they had a bunch in unissued condition.
Check them out at www.czechpoint-USA.com