Well, I just picked up a M&P 45 compact last week. Have put about 150 rounds of Winchester hard ball thru it. It seems very well made, and the feel of the grip sold me over the 2x4 handle on the Glock .45. Mine shot right on for elevation, about 3 inches left. Sights are steel, dove tailed front and rear, and easy to adjust. The trigger is Glock like, in that there is an easy, soft take-up, then a firm wall before release. Mine is about 7lbs, maybe 2lbs heavier then my Glock 26 or 19. No problem punching out fist sized groups off hand at 25 yards, and I'm sure it will do better with a little load testing and practice. Over all, I like it, especially the interchangeable back strap feature. Mine does not have the key lock, the magazine disconnect safety, or the thumb safety - all available options. The magazines seem well made, though hard to get that last round in. Hope this helps.
Larry