I have both a Mak and a Kel Tec, and like them both. I got the Mak because it was just too great a bargain at $110 to walk away from. For me, the Mak is sort of an 'ace in the hole' gun. It's fun and cheap to shoot, but it would also make a good backup gun to have around. I have to admit it is also kind of interesting to have a pistol that was made in Russia, and a variant of which was/is used by their military, and extensively in Europe as well. I'm not a military buff, but I find the Mak's pedigree to be interesting.
On the subject of the KelTec, I find it to be an amazingly small, light, and highly pointable gun that, with a set of Uncle Mike's slip-on grips and a finger extension on the mag, fits my hand perfectly. It is amazing to me that they have taken such simple, inexpensive components and assembled them into such a little engineering marvel. I also think mine has the best DAO trigger I've found on anything. Mine is also reliable. I got rid of my Beretta 9000S DAO because it didn't fit my hand well enough, and most of all, I could not control the long, rough, hard DAO trigger well enough to be confident with it. Yes, the Beretta was a high quality gun, but the KelTec has a much smoother and shorter pull and I can control it better. Any DAO requires practice and discipline to use well.
-10CFR