I bought Kahr PM9 and P40 over a dozen years ago, both top end poly models with Glock-like polygon vs land/groove rifling and dovetailed vs pinned sights of the CW and CT lines. Newer Kahrs also have sported some 'carry bevel' that my early Ps lack. Build quality, fit & finish are tops in either case. Had I to purchase again I'd go for the less pricey cut-rifled versions, if only to allow practice with cast lead, and both 9s vs one in .40 S&W.
PM9 (also CW9) carries much like the Kel-Tec P3AT. P40 carries Much like the Makarov but is slimmer, lighter and kicks twice as hard. Both are reliable and surprisingly accurate esp considering their short barrels.
btw, I fired several Taurus semi-autos (.40 & .45), long before the company's trigger troubles, and was impressed by their accuracy and ability to cycle a wide variety of bullet nose profiles, but might as soon carry their '905' 9mm revo. (Big fan of the brand, esp G2 series)
IIRC it's Diamondback that is bringing out a 'Glock clone', promised to be reviewed soon in Gun Tests alongside the latest from Canik, but IMO it's Springfield XDs that fit, feel, shoot the most better than they look. Trouble is (and consensus here supports) there are far too many good carry options to offer advice or criticism.
All that said, "good on ya" for a 'good pick' with the Kahr! (expect 50-100 rds to 'break in' and smooth things up a bit from 'new') tog