I have very limited experience with the SCCY CPX but I'll report it anyway.
I happened to shoot a SCCY CPX-1 twice (same pistol) 2 days apart. It belonged to a young man I encountered at a nearby outdoor range. He had recently purchased it NIB and had only shot it a few times. I shot around 3-4 magazines of 9mm ammo out of it.
The pistol is rather uncomfortable to shoot but I am not sure I would hold that against it. It wasn't terribly uncomfortable, about what I expect for a small, lightweight, thin, and easily concealable pistol. You don't buy a pistol of that type because it is huge fun to shoot.
As for accuracy, I can't really comment. The range was restricted to shooting from bench at 25 yds which is way far for accurate shooting with a little pistol like this with a short sight radius, at least for me. It was accurate enough to get torso hits at 25yds. My impression was that with practice it would have acceptable combat accuracy at realistic self-defense ranges of 3-12yds or so.
Trigger wasn't great IMO, but not horrible. I shoot a double action revolver and a DAO pistol, and I have 3 traditional double action pistols that I very frequently shoot double action for practice so I know what to expect from a double action trigger. For the price, the trigger action of this pistol was quite acceptable.
The pistol was one of the loudest 9mm Para handguns I have come across.
As for reliable function, for this sample size of one it was pretty dismal. The first day there were no malfunctions but the second day the owner was experiencing frequent failures to extract with the spent case remaining in the chamber and a fresh round trying to feed in against the back of it. This was occurring with both of the magazines. I shot one magazine that day and had two failures to extract with the one mag. The extractor hook and barrel chamber looked OK grossly.