Welcome Redmutt and Happy Holidays!
The 380 in a small frame firearm has some snap to it. My first SD firearm was the NAA Guardian 380; I still carry it when, for whatever reason I cannot carry a 45acp. I bought the Guardian because it has a very nice fit and finish, was stainless steel, was very easy to strip and clean and believe the weight that many complain about is a plus. I carry it in a DeSantis Nemesis pocket holster with a spare mag in my other pocket. When I go to the range, I shove at least 100 rounds through it. Practice is essential if you are going to carry a firearm for SD. I have shot up to 150 rounds in one session. I can't picture doing that with a Kel-Tec. The Kel-Tec would be fine if you don't plan on throwing a lot of practice rounds through it at one time. The Kel-Tec is definitely cheaper. I added nicer grips and the curved finger extensions to my 4 mags. I've done nothing else to it other than shove a lot of rounds through it, over a thousand so far with no troubles. The 380 is a decent up close round. It'll make'em leak at the very minimum. I keep mine loaded with 102gr Remington Golden Sabers. Good luck. Let us know how you make out.