I, too, am really pleased with my PM40. I thank the wife every day for buying the gun for me as a Christmas present.
I had a couple of problems in the first 100 rounds or so, but I'm really not sure if it was a problem with the weapon or if I was just limp wristing the gun as I had been at the range for a while by that time. Since running a couple of hundred rounds through the gun, and always concentrating on my form, I have not had an issue. I carry the gun everyday.