I have a CW40, and I agree with Earl. Long trigger pull, but not bad--just different. My biggest gripes are:
1) Assembly/disassembly much more... inconvenient... than I'm used to with my other pistols.
2) Magazine falls out quite often. I understand that's a known problem that can be easily fixed by Kahr. Haven't gotten around to talking to them yet (just got it last week).
3) Mine tends to not go back into battery. Happens about one shot in 10. May just be limp-wristing it, though--never shot a gun this compact before, and that may be throwing me off.
For a CCW, though, it's VERY concealable. For now, the jury is still out for me--but most others I've talked to really like it.