People always say how terrible the trigger on the m&p is but I don't find mine to be bad at all, the reset on it is quite decent actually. It's a bit gritty on the pull but not overly, maybe I got a newer production model with the better trigger for all I know, I took a good look at the slide release lever recently and it has the upgraded reinforced version that's got an extra weld on it.
It's not as crisp as say a Glock but it's pretty noticeable in the reset dept.
If we are talking strictly triggers the m&p is horrible for the price ($650). The canik tp9sa ($530 @ questar) and ppx ($570 average) have better triggers for considerably less. Or you can go the other way and spend a few more bucks for a sig p320 ($750) and m&p pro ($750).