Late to the party here, but I bought my CSX a few months ago and love it! The size is perfect and I love that it has a metal frame. Polymer has it's place, but I'm getting back in touch with all metal guns again. This is the first time carrying a SAO, but the transition has been really easy. If they had released a DA/SA version I probably would've bought that instead, but no complaints on the SAO.
The trigger is fine for a defensive gun. I had the false reset at first until I put 100 rounds through it and it disappeared. I haven't done a lot of long distance with it yet, but I made a few hits on steel at 80 yards so far with it.
I grabbed
THIS HOLSTER off of amazon and it's worked pretty well, although I'm going to change out the belt clip to a homemade J clip with a forward cant.
I'm kind of hoping for the sake of the model, that they'll release an optics ready version, although I don't feel a huge need to add one myself for CCW. I really want this model to stick around and be out there enough that it'll have a bit more aftermarket support and spare parts available since I like to keep a few critical parts on hand for my go-to guns, rather than have to ship it off to the manufacturer and be without it for a spell.
Attached FileETA: I forgot to mention that my wife really likes the feel of it as well, and was really impressed that it hardly takes any effort to manipulate the slide.