Put about 300 rounds so far, had a few miss feeds, too many for me. Then the other day after being loaded with one in the chamber I tried clearing it. Could not pull the slide back to eject the round. I called S&W he told me to take it to local pd they would help me clear it. I was a little freaked out, I've owned a Sigma 9 for years and never had a miss feed or failure to eject. Since this will be my main carry I want it right. After taking it to local range and getting it cleared I sent it back to S&W. Although the gun shoots great it has to work flawless or I have no confidence in it.