I would recommend the NAA Guardian. I have carried a Guardian for about two years without any problems. The quality of these little blow-back pocket automatics is excellent. They are actually manufactured by Kahr and assembled by NAA. The Guardian weighs just enough to counteract the .32acp in rapid fire at combat ranges. The Guardian's sights are cosmetic and useless at combat ranges.
My Guardian digests all brands of .32acp, including hollowpoints and silvertips. I have experienced no malfunctions, design defects, or manufacturing errors. However, NAA has a reputation for excellent customer service and they go out of their way to make things more than right.
My Guardian is equipped with the NAA custom wood grips and a Sharkskin pocket holster. I prefer the custom woodgrips over the factory grips since the larger wooden grips control recoil and allow my large hands a better purchase on the firearm. This is a "carry-a-lot and shoot little handgun" that should last a lifetime.
As stated by other posters, NAA's president is completely accessible to the public and he and the other team members at NAA will do anything to solve a problem or to help a customer.
While the Kel-Tec P32 is extremely popular, lightweight, and slim in design, I wasn't impressed with its construction, design, or quality. Upon disassembly, my confidence in Kel-Tec's component parts and design became even worse. The guide rod is flimsy and cheaply designed and I also have no confidence in Kel-Tec's metal springs and guide rails. However, many of my friends carry the Kel-Tec and are satisfied with it.