I have a Kahr PM9. I had never heard of Kahr guns until about a year ago and bought one after renting one at the range. I have not been disappointed.
The PPS is to large for pocket carry. The PM9/CM9 you can pocket carry or carry IWB so it may be a little more versatile.
Both are good quality guns.
"The worst place to have your happiness is in sombody else's head" -Lester Sumrall