Some people have also removed the loaded indicator but are left with an inch long opening on the slide which allows dirt and debris into the weapon.
I just have to agree, the S&W just feels like a better quality gun. The changeable palm swells really make a difference in how the weapon feels in the hand. A feature I like also.
There is still a chamber loaded indicator on the M&P although somewhat less useful than the Rugers. I like having that feature as well as the ambi safety lever ala the 1911 style. It also has ambidextrous slide release levers.
Good, Novak low profile sights and aggressive "fish scale" serrations(?) for a positive feel while drawing the slide back.