New to USACarry and this forum. I've owned a PM9, CW45, and CW9 for a couple years or more. I like the PM9 and the CW 45 a lot. I got the CW45 first to replace my Colt's Officers. It's a little easier to carry. I got the PM9 for deep carry; for example under a tee shirt. Both these guns shoot very well. I put Trijicon nights sights on the CW45, they're great. Someone pointed out that the gripping surface is too aggressive. I agree; I filed mine down some and that worked. I've since added a Handall Jr and like it just fine. I've hand two issues; I've replaced the recoil spring at about 800 or 900 rds, the factory recommends 800, so that's fine. I was shooting one night during a Club practice session and the slide lock started coming out, so I replaced that spring. These are small things but you do need to keep your eye out for them.
I put XS Big Dot night sights on my PM9 and, for my old eyes, they are the ticket. By the way, last summer I competed in IDPA BUG (gun) competition and did just fine. I had a little trouble with the long, 25 and 30 yd., shots but other than that did fine. Also, I have the Kahr finger extension base plates on it and a Handall jr grip sleeve.
I don't carry the CW45 much anymore because I've opted for increased capacity. So now I usually carry a M&P9c. I do still carry the PM9 when wearing a light shirt.