Note the serial number...
I sold my 32 Guardian to make room for something else, but it was a good little pistol.
I seem to recall that 32 Gaurdians come in three flavors. Serial numbers starting with AAxxx were the first run, and I think had some issues with reliability. The ABxxx series were much improved, and the ACxxx models were a further refinement of the AB. ACxxx magazines are not compatible with the magazine release on earlier models, but I believe NAA will upgrade the magazine release on earlier models for free.
I sent my ABxxx model to NAA to have Ashley sights installed. They upgraded everything to AC specs while they had it. I seem to recall the extractor was more rounded, all the springs were replaced, new hammer, new magazine release, and magazines. They also gave it a good fluff and buff (didn't need it, but they re-polished the feed ramp and polished away some hidden interior tool marks that didn't interfere with function). The difference in trigger pull was night and day when I got it back-I think they dropped a few pounds off it and it was considerably smoother.
I guess my point is that it is well worth talking to NAA about upgrading an AA or AB series to AC specs., or keeping an eye out for an AC or later model to dodge the next day air charges.
My Guardian fed JHP fine, but I always used FMJ (Fiochi) for carry. I don't believe 32 ACP has the horsepower to expand JHP's reliably, or penetrate adequately if the JHP does expand. I trusted FMJ to at least penetrate.
The Ashley sights were much easier to quickly acquire than the stock Guardian sights (if you can even call them that). For sighted shooting they are worth it in my opinion. But they're an expensive addition if you'll only be training to point shoot your Guardian. Also, while accurate for what it is, the Guardian is not a "one ragged hole" pistol. If you are considering sights more precise than the Ashley's, consider the expression "Measure with a micrometer, cut with a chain saw" first.
Enjoy your new Guardian.