About 1,200 rounds through it now. I am still very happy with it.
I did have them send me for $20 the bolt hold open part which was an easy install.
I also sent back for a free trigger upgrade, it is now much smother and closer to 5lbs. I understand the newer ones come standard with the newer 5lb trigger.
I am considering getting super low rings, in which case I may change out charging handle to an ambi which will help with any interference in getting purchase on charging handle should that be an issue with lower scope.