Both are very concealable, and both have generous ammo capacity for being such tiny pistols.
Tiny... yes. Good for CCW... yes.
Best choice for HD and a fun range gun? ... Nope. Not trying to bash the kel-tec, but if you wan't a good "all around" gun there are better choices. The kel-tec and other "tiny" guns are not exactly fun to spend all day at the range with.
I know that I already suggested a Sig 229... but I also agree that you can't go wrong with a Glock 19. If money is a big issue (usually is for me!) look for a used Glock. You can get them pretty cheap and for the price, you wont find a better gun.