I have the .32NAA version of the Guardian. It is the same size as the .380 and it shoots a bottleneck .32-380 cartridge. They are certainly not range guns and can be uncomfortable to shoot for long periods of time. That being said though they are surprisingly accurate for such small pistols.
There's a series of pistol challenges ongoing at TheHighRoad. One is titled the "long walk - short pier" challenge and requires shooting a 3" barrel or shorter handgun at 50 ft. and posting the results. Here is my effort at this with the guardian. Six shots two handed at 50ft.
Overall it was a 4 inch spread. The first shot was a bit of a flyer from the main group, of which three rounds cloverleafed.
The NAA Guardian line is certainly well built and capable in a defensive role. I'm looking around for a .380 myself locally.