I have a CZ82. They're wretchedly heavy for what they are, whether it is the 82 or the 83. Anywhere that one can conceal one, a G26/27/33 would go and would weigh about the same while doing more (and even carrying as many rounds with certain optional mags). The CZs do not have a decocker, so you can either carefully lower the hammer on a live round or else carry it cocked and locked.
My wife has a P3AT.
I actually fully understand the desire to have a larger/easier to use .380. Reliability is going to be better in the larger guns (unless you get a real lemon of a US made PPK) and they are easier to hit with. I simply don't trust the QC at KelTec or the reliability of the P3ATs personally.
The vestigal sights on the KelTecs limit them more than I choose to usually have a gun limited. I could get decent hits with my Interarms PPK at the 25 yard line. Same with the Beretta. (I never tried my Sig P232 beyond 50 ft.)
KelTec has great customer service, but old George never fled far from his Tec9 roots in terms of what he does product wise. He's the John Moses Browning of the SNS, but I mean that in a loving way. You've got a fair chance of a gun working, but there's also a chance that it just plain won't. The similar P32 is probably less buggy and I was happy with the one I had in terms of what it was and what it was for.
User friendly compared to easy to carry is a balancing act. There are people, myself included, who simply don't like where the balance lays with a P3AT or Ruger.
I traded my Bersa that I bought just to see what the whole Bersa thing was about for an ADC 9mm Derringer and actually thought that I got the better part of that deal. They're okay, but build quality does not approach the Sig, Beretta, or good quality Walthers (I've no experience with the current S&W incarnation). If you poke around a bit online, you'll also find that they sometimes have parts breakage issues. I also don't like guns with internal locks, which the Bersa had.
The best of the guns in this sort of niche that I've ever owned is one that you'll probably never be able to find. That was a Walther PP Super in 9x18 Ultra/Police (not Makarov), though these were also made in .380. I paid all of 200 dollars for mine since no one knew what it was.