I was silly enough years back to trade a S&W 1076 for a "NEW" S&W Sigma 40 with a couple extra high cap mags. At the time, I was newly married and thought I could get my wife interested in shooting. That failed and so did the Sigma. As a 1911 USPSA shooter, the Sigma trigger was just too long. I had hoped to use it for competition instead of for the wife. I could shoot it accurately enough when I slowly pulled the trigger. When I shifted to competition speed, I was hitting everything but the target.
YET......at the new, lower price, I may pick one up for "home-duty" and maybe even Production class in competition, if I can smooth out the trigger a bit. Overall, they are good guns IMHO, but you definitely have to have a tolerance to the trigger pull.