Well, I'm not Mike, but this is on the public forum....
I have both pistols, so I have nothing against either model, or either brand.....
The Glock is more accurate and more reliable, and cheaper too. IMO it makes a great ccw. Ours has run 100% for about 2k rounds, and has fed and fired everything we've thrown at it.
I purchased my PM9 because I wanted something easier to conceal than the G26 when wearing minimal summer clothing. It now runs 100%, but did have some issues at first. It borders on incredibly easy to conceal. Even though it is light in weight, I find it very easy to shoot. My wife can handle the recoil too, but she doesn't like how the backstrap nubs dig into her palm. Trigger pull is long, but easy and not gritty.
Based on what I've read, it seems like there are a lot more people who have problems with their PM9 vs. the G26. IOW, you might get a good one, and you might not. As long as you know this in advance and are willing to work with Kahr (if you have to), then a PM9 makes a very good ccw. Overall though, if I could only have one ccw, it would be the Glock.