The NAA Guardian .32acp is an extremely well made pistol in both aesthetic appeal, workmanship, and design. It is also a bargin for its features given its reasonable price. I paid $300. It isn't a handmade Seecamp but it is a fine pistolve nevertheless.
My Guardian shoots Corbon, Winchester Silver Tips, and Fiochi without any hicups or problems. The Guardian isn't a range gun or a tack driver and its sights are more for show than a functional purpose. However, you don't need sights for the Guardian given its dual purpose of personal self defense in close range settings and ultra concealability.
The stock rubber grips on the Guardian, while nicely designed, did not allow a good grip purchase with my larger hands. Instead, I replaced them with the Hogue/NAA custom smooth wood grips [$40.00] with custom stainless allen grip screws. Instead of just making the Guardian more pleasing to the eye, the wood grips give me, at least, a better purchase on the Guardian. The custom grips also place my hand in the proper shooting position for this automatic and guards against contact of the slide with my hand.
I carry my Guardian in a Desantis Pocket Holster. It allows both front and back pocket carry without identifiable printing through jeans or dress pants. The Guardian is also just 13.5 ounces in weight--making it a perfect "allthetime" concealed carry or backup weapon. As the saying goes, I have other handguns to choose from in my safe with greater capabilities, but the Guardian usually is my main concealed carry pistol because of its ease of use, weight, and concealability.
The Guardian has the option of a finger grip extension for its magazines. Some find that this allows for a better grip. It didn't in my case and made my grip dangerously high, high enough for the slide action to cause harm to the fleshly part of my hand between my index finger and thumb. Also, the finger extension often snagged or got caught on the edge of my pocket when attempting to draw the weapon.
I looked at the Kel-Tec P-32 and seriously considered it as an alternative the the Guardian. However, in my opinion, it doesn't have the workmanship, quality, or good looks of the Guardian. However, it is lighter and has a higher magazine capacity. It is thinner in width than the Guardian, but longer in the frame and grip than the Guardian. I think that the P-32 is cheaply made, but many swear by it and have traded it for their Guardians.
Personal preference controls. Get what's best for you. Try all of the .32acp makes before buying. It's what works for me. Also, NAA customer service is excellent if you have a problem.
Good luck! Stoic.