I second this post! I was also brainwashed by .40 cal hype & I bought a G23 as my first pistol when several people told me to get the G19. When I bought a G19, I was so much more accurate & my follow up shots were much better. I got rid of the G23 & my platform is strictly 9mm (I will get another 1911 when the funds allow). Plus the ammo is cheaper as well.I would encourage you to do some research on calibers and possibly come to the same conclusion that I, most reputable authorities on the topic, and every instructor I've ever had did: that modern 9mm defense ammo is superior to any other choice. It is just as effective ballistically, with better capacity and is easier to control. All handguns are poor manstoppers, and your best plan is to get multiple hits on target ASAP. 9mm beats 40 S&W here.
Don't want to start a caliber war, but the question was "what your thoughts were on a 40 S&W CCW". So technically I am still on topic