I like those Olights. Have the minis on my P01 UG and the FNS Compact (it required the slightly different version with the adjustable rail/clamp). I have the bigger ones on my .40 P09 and did have one on the M&P 2.0 5" FDE 9MM.
I carry a charger cord in my travel bag for the mini (don't travel with either pistol with the bigger lights).
I like how they have a low charge indicator on the light. I like how the charger lights up red when you put them on charge (the sleeve at the spot where the wire enters the magnetic head) and then turns green when it's fully charged.
Need to practice shooting one handed (I need to) as you never know when you might not have two good hands to shoot with. Practice shooting with the weak hand, too (again, I need to do this).
Got a bloody/gory picture (or 3) of the palm of my left hand I sliced open a few months back when I got in a hurry to toss a bundle of steel fence posts into the back of my truck without putting on my work gloves first. Took awhile to heal up when I didn't get to the doctor in time to get stitches. Walked around two or three days with my hand taped up in a way to keep the palm from stretching and opening the cut back up again. Had to have help getting dressed as the left hand was pretty useless for a few days.
If I didn't say it before, my 2.0 shoots it's best with the Winchester 124 grain FMJ NATO ammo. Head and shoulders above everything else I've tried. Now I need to develop a load that gets that kind of velocity with 124 grain hollow points to see if I can get some reasonable self defense ammo to put that Apex trigger and barrel to good use.
FDE M&P with FDE Olight. Not an exact match, but reasonably close.