Check the Kahrtalk forums for much more information and enjoy your new gun.
skip to the 'good/bad/ugly'...the rest of this is just hot air.
Respectfully: if you want to brag about your Kahr, they will love you and join you in singing Kahr praises in loud, manly voices. If you have a problem, they will tell you in this order: you didn't read your manual, you didn't lube per the holy tablets that came down from the mount, you didn't break it in right (per said tablets) and you're not gripping it in a Kahr-like, manly manner. So go read your manual, lube your pistol right, shoot it like you stole it until it starts to go bang when you pull the trigger, stop limp wristing it, and if none of that works, send it back to "mother ship" and the monks up in Massachusettes will happily put it right...in 14 days or less.
They seem to be a nice bunch of folks over there. But, generally, they are not much open to discussing problems with Kahr pistols. It is, however, entertaining. I think it's hilarious how some folks take on about their favorite brand of firearm. In fairness to them, small pocket pistols are fussier, and lube, break-in, good ammo and good form are important factors in getting them up and running well enough to rely on them.
Seriously, it really is like this: if you get a good one, you'll swear it's the best defensive pistol you ever grabbed up in your mitt. If you get a bad one, you'll likely get to know Ian (Kahr service rep) and your Fed Ex delivery guy on a first name basis. I was certain that the CM9 was the answer to my "must have a 9mm in my front pocket" itch. I was somewhat aware of the Jekyll/Hyde reputation, but I thought it was worth a $400 roll of the dice.
So I bit, and had light strike malfunctions out of the gate. I kept shooting (300 rounds) to see if it would line out. It didn't, so two weeks after I bought it, it went back to the factory. They replaced the slide (and I suspect the barrel as well) and I got it back (choke) 14 days later. Since then (another 500 rounds...I am a cynic) it has been...in the words of the great and powerful at Kahrtalk..."flawless". I am carrying it now, on occasion.
the good:
-love the simplicity of the design
-love the trigger, though it takes some getting used to
-a 9mm in my front pocket...love it
-when you get one running, it seems to run and run and run
-they are fun to shoot, fun enough that the $100 I spent breaking in and proofing the repair seemed almost worth it
the bad:
-sights not great, plastic, you can't do aftermarket sights on the CM9 (that I know of)
-all little guns have squirrely springs, hard to slingshot/rack the slide on CM9 until it has a lot of rounds through it
-removing the slide is harder than it should be
the ugly:
-quality control philosophy: send em all out and let the owners figure out which ones needed tweaking. This is not a good way to run a railroad. (Also, if you don't ask for a call tag, they'll let you pay the freight on the return.)
-mags have a terrible reputation, especially the 7-rounders (in the 6+1-shot guns)