Not seeing your range report anywhere on the forum.
I've only got a few hundred rounds through it so far, so I'm still getting used to it and getting everything broken in and running smoothly.
My only real beef with it thus far is the somewhat vague trigger reset; I think I've gotten used to a much more audible "click" with some other pistols. The problem is reminiscent of the early M&P 1.0—which, in fairness, did resolve itself after a few thousand rounds. As the SD has broken in the reset is getting a bit more perceptible (and I'm probably getting better at "reading" it). Otherwise the SD 2.0 performs just as well as my Glocks and other polymer pistols at the sub-$600 price point.
(and I acknowledge that there are different schools of thought on whether the trigger reset is important or not ... so the importance of this could be debated.)
The M&P Competitor has a superior trigger in just about every way (and probably the best out-of-the-box M&P trigger I've run to date), but it's also a magnitude more expensive and should have a better trigger. So no surprise there.
I'm a "simple iron sights" kind of guy and appreciate the un-fussy three white dots. I have no problem getting a good sight picture. Others, I imagine, will opt for the exotics. I don't know (and don't care) if the SD could be fitted with optics, but if it can't I imagine that's a function of keeping the price down.
Whatever the grip angle is works well for me. Magazine release is not fussy and positioned well, and the magazines drop freely as I'd expect.
A small bone of contention I have is that the magazines are proprietary to this model. I've got several other M&Ps and an FPC carbine (which share magazines), but with the SD I'll need to keep yet another proprietary magazine around.
Takedown is Glock-ish, not surprisingly, and detail stripping seems to be straightforward. I don't know how vigorous the aftermarket is for these, but I don't generally load my guns up with aftermarket stuff so it's neither here nor there for me.
In terms of accuracy: I'm pretty sure this pistol is more accurate than the guy holding it. The barrel lockup seems tight and if I throw a shot, I can usually self-diagnose something that I did wrong.
Mike