I love my S&W's but went with G-29 for CCW over Sigma for two reasons, looks and it's 10mm of thunder.
Also I like the accuracy and trigger, it can be stripped bare of all parts and put back together by trained blind monkey.
Shoots LSWC with better accuracy then my 610 5" and stays cleaner in the process and lot easier to clean.
Down side is no manual safety unless installed by end user like I have done. I would love a full sized M&P 10 mm and would buy one in a heart beat.