As with just about all of the .32 pocket semi-autos, the Guardian seems to be a crap shoot. There are many people who have no trouble at all and love them and an equal number who seem to have no end of trouble. My Guardian had to go back to the factory three times for repeated feed jams, two broken slide releases, and an ejector that flew away while shooting. NAA was very responsive, even if they couldn't fix the thing. Finally, I asked for and received an entirely new gun, which worked just fine for the 200 or so rounds I shot before I sold it. By this time, I felt that I just couldn't trust any Guardian with my life.
I now carry an S&W .38 Special Airweight when I need a quick, stick-in-your-pocket gun. It's absolutely reliable, much more powerful than a .32, cheaper than a Guardian, and makes me feel like I'm much better protected. The Guardian is a beautiful gun and extremely concealable, but it's no fun at all to shoot, and as a defense round, the .32 ACP, in a word, sucks. Hollow points almost never expand, and when they do, they do not penetrate well at all.