I will be honest I was concerned about getting another 40 S&W after my Glock but someone local had an S40 for sale at a great price and I decided to jump on it. The trip to the range I kept going over about how my Glock felt with the 40 and was wondering even before I shot it if I had made a good choice buying it or not. All I can say is the S40 is a BAD MOFO. I REALLY like it and I shot it WELL. It was hard to put it down to shoot my S9 as every time I was shooting my S9, I kept on wanting to go back to the 40 which was the complete opposite with my Glock (Couldn't wait to put it down)The new 40 DID have some oomph to it but ti was pleasant and I could feel the power it possessed. It was really weird shooting the 40 then going back to the S9 because after shooting 20 rds of 40 the 9mm felt like a 380. There were no hiccups out of either of my pistols tonight NONE and both performed flawlessly. I definitely recommend doing some of the maintenance tweaks especially polishing the striker so it glides over the roll pin with ease, mine was horribly tight in the striker chamber when it hit that roll pin but now it is as smooth as butter. I loved my S9 when I got it in hand but this S40 is going to be a force to be reckoned with.