First let me say I LOVE how the M&P shoots. It's very smooth, easy to find the (invisible) reset, it's accurate as all hell... I almost bought one until...
I did my due diligence and found out they don't hold up after about 25,000 rounds. That's likely not an issue for most buyers, so if you're just getting one for weekend plinking a few times a year + home defense, then you're good as gold. But I shoot a bit more, and didn't need something that wasn't going to hold up. If you'd describe your shooting habits as being similar to mine, then what I've found is that pretty much only Glock and Springfield XDm will do the trick (assuming you're looking for a plastic gun). Even in these categories, the regular XD series has come to show some significant issues, and the smaller frame Glocks seem to have issues with high pressure rounds like 357 Sig. Again, I'm looking at this from a 25k+ point of view... not from a sock drawer point of view.
Anyway, I hope that helps, good luck, and have a great time!