I do not own a CM9 yet. I do own a Ruger LC9S and love the gun, have been shooting LC9's since they came out. A great mild shooter that shines at 15 yd. fast point and shoot. However after owning 4 Ruger LCP's and burning out three of them, ( My present one is in retirement. That high five slap of the LCP is ridiculous.) I bought a Beretta Pico and fell totally in love with the gun. Solid built like a tank, great concealment and Super MILD to shoot. In fact I bought another one, Liked it so well. Later I bought the Kahr CW380 and have to say I love that gun as well. After buying the smooth shooting Kahr, got me to thinking about the the CM9. The trigger on the LC9S is very light, almost down to 4 1/2 lbs and crisp. However, since I like the Kahr CW380 so well, my next purchase will be a Kahr, or Nano.
That said, they would have to go along way to beat the reliable and smooth shooting LC9S.