finally had a chance to get to the range and shoot the new member of the S&W family. all i can say is that i am as impressed with this weapon as i am with my sigma 40ve. compared to my sigma, the trigger pull is as long, just a little lighter. really love the slide serrations, big improvement from the sigma. gives you a real positive grip when racking the slide. sights are similar, SD white circles are a little bigger, no big deal. sigma/sd magazines cycled flawless, sigma baseplate is squared, sd is rounded, cosmetic...love the fact two different weapons use the same magazines. probably will purchase another in the near future, can't justify the extra 150$ on the m&p for ambi control/trigger. like knowing all the handguns in the arsenal will run the same magazines, just like my AR's. also wanted to say i purchased some remanufactured ammo from freedom munitions and have been really impressed. great ammo on the cheap, also have a brass credit program, check them out.