I've had a PPK/S for over twenty years. It is easy to conceal and mine is as accurate as I am. What I like about it is its appearance. Let's face it, this is a classic. I also the quality of design and manufacture. Finally, I like the fact that this is a narrow pistol.
I know people brag about being able to conceal a 1911 or a double stack Glock. I suppose that I could do that, too. But heck, who wants to? Yeah, I know that a .380 does not have the knock down power of a 40mm Bofers gun. But I just have to believe that two or three .380 Silvertips would dim any attacker's enthusiam for the fight.
I guess the bottom line is this. The design of this gun is now nearly 80 years old. There are lots of PP/PPK series Walthers out there and more are sold every day. That is as strong an endorsement of this pistol as you can get.