I finally got mine in hand after a pretty long screwy fiasco with the threaded barrel issue.
Put a 100 rounds of CCI mini-mags through it immediately at an indoor range.
Initial thoughts - I feel like my GSG 1911 has tighter groups, but I would imagine that comes from a heavier gun, maybe the barrel is a little longer too? I am deadly with that GSG.
Out of the box, the M&P was shooting high and to the left for me. I'm sure with those adjustable rear sights it will be a quick fix to adjust. Seems like it was set up for a 6 o'clock hold on the sights actually. Wanted to put some rounds throught it before I did anything and I didn't have a ton of time.
It's a really fun pistol to shoot though. Lots of muzzle flash and decent kick for a .22 as well. I'm really happy and stoked to have it.