I have to chime in with my experience with a similar pistol. I was issued a 4006 (I think that is the model), a full sized, .40 cal semi as a Deputy with the Lee County S O in AL.
I NEVER, EVER fired a complete 50 round course without at least one jam; FTF, FTE, stovepipes, double feeds, etc... This brick was too damned big for only 12 round capacity, was loose, inaccurate and another deputy discovered at the range that his firing pin had broken. He had no idea how long it had been disabled! Scary, eh? I guess that could happen to any pistol but I have never seen it. I also do not like the mag-"safety" feature... I can see when it MAY be helpful but if I need my weapon to go boom, I want it to go freaking boom!!
I personally hate S&W semis... Their revolvers rock and I own an Airweight .38 and owned a 686 .357. Both are superior weapons.
Bottom line, why buy a S&W semi in a world of Glocks, Sigs, H&Ks and Berettas?