Jocko, a member here has around/over 15,000 rounds(IIRC) through his Kahr P9(IIRC). Like all firearms, there are a few lemons and the CW's had some early problems with their polymer frames. But, they have since fixed that and they are a very hot item among alot of LEO's as a back up sidearm. The metal framed Kahrs seem to be more durable, but the polymer ones are nothing to shake a stick at. Ive shot an unreliable XD SC before. The magazine kept falling out(wasnt my thumb) and i had 4 stove pipes in only 50 rounds. The Glocks, to me, dont point right. I have small hands and i couldnt get my pinky on the grip on the XD SC and G26, unless i used their extended mags, which just hurt its concealability that much more IMO. The CW9 doesnt have that problem.
For me, the CW9 is the best option out there. It fits nice, has very little imprint and i can conceal it very well with just shorts and a tshirt. It points like a dream too.
IMO, the CW40 is a bit much. Most of the problems the Kahr's had were with the models chambered in 40S&W. The recoil is quite intense on a 16oz firearm. Kicks similar to a snub nose 357 using medium powered loads. I rented the CW40 first(it performed perfectl and was a range rental), but didnt like the recoil so i went with the CW9.