Anyone here have one, or have any experience with them?

I own a PSP made in the USA clone.

Have you ever had any issues with it?

Its been surprisingly reliable. PSP actually made Baby Brownings for sale in Europe under license from FN.

Mec-gar magazine's are excellent. The design is 120 years old and still works for me.

I keep it clean and oiled. It's 30 years old and still looks like new. .25 acp is comparable to a .22 power wise, but more reliable IMO because it's a center fire.

Consider replacing the recoil spring if it is old. Good magazine's are a necessity

Fun gun, super tiny!  Sights are more of a suggestion than anything else, but this piece wasn’t meant for target shooting. Precision Small Arms is keeping the design alive and they even make a threaded barrel for it.