When I shot is last weekend, I was using my reloads (Hornady 55 gr FMJ, CCI primer, Lake City brass with 27.4 gr of BLC2 powder) and my friend was using steel cased Tula ammo. Neither one had a hiccup. I clean mine almost everytime I go to the range (usually shoot about 200+ rounds). I've let it sit uncleaned a couple of times when I shot less than a hundred and on the next trip, it's on target. I also run it with minimal lube on the bolt, usually whatever I had put on there after cleaning.
I've also used Federal bulk ammo XM193 (55 gr FMJ) and XM855 (62 gr FMJ - green tip). It shoots those pretty good as well.
I have not shot mine with a scope so I'm not sure if it's a MOA shooter. Maybe one day, just to find out.
And oh, the stock handguard that comes with it, does not have a heat shield, so that can get pretty warm. I replaced mine with Magpul MOE. I've also changed the pistol grip to Hogue and the buttstock to Magpul MOE. Mostly cosmetic change to personalize it a little.