I have a PPK and love it i never had to change my style of clothes or go out of my way to get the perfect holster. There are better guns for carrying though. Some guns are too small like ones you cannot hold comfortably and accurately aim. Others can be too big like a full sized 1911. But i think size wise the PPK is about right for most people.
As others have said here the .380 ACP is a 9mm round with less power behind it. It is a good round but will not stop every goblin you come across. Then again neither will a .45 if you can't hit them or can only carry it in the car because it is so big. The light round makes recoil negligible and even the smallest woman will be able to fire it without problem.
It is all preferences I will keep carrying my PPK until i can afford something better.