IMHO their the best polymer pistols on the market. Just put 150 more trouble free rounds through my 45. 50 magtech, and 100 wwb, both are tack driving accurate.
I have owned a springfield XD 45, a glock 9mm and 40, and a h&k usp 45. IMHO the m&p 45 is hands down the best I have ever owned. It is accurate, comfortable, and so far 100% reliable. Just my 2 cents, buy one you won't be sorry.