The M&P is a fine pistol, but there is no Kool-Aid involved with going with a Glock. With something like 3/4 of all U.S. Police Departments using them, including the F.B.I and countless Police and Militaries around the World choosing the Glock over domestically manufactured firearms, it's kind of hard to dismiss their popularity as hype or clever marketing. Not to mention just about pretty much every reputable and/or notable instructor I know carries one more than any other pistol. Nothing wrong with going with something different if you find something suits you better and Glock's sure aren't perfect, but they are a proven choice in every respect. https://en.wikipedia.org/wiki/Service_pistol