I'm in the process of switching several of my rifles to Athlon. Two 6.5 Grendel's, 6.5 CM and 6.5X284.
Both Grendel's started off as 5.56 which I have never been very fond of, so they ended up with Walmart quality scopes (no I didn't really get the there but I bet you could have).
I've been reading reviews on their entire line of scopes and they seem to be GTG. I found one real bad review on one of Athlon lower tier scopes, it was so obvious the guy had no clue. I'd almost bet he would have given Night Force a bad reveiw.
But seriously if you are a true long range hunter and seldom take a normal 150yd shot. Your "normal" shot are all dial ups over 700 yards you "might" (I emphasize might) be happier with Athlon next level up, the Cronus. I don't think I have ever seen a poor review...let alone a bad review of that scope.
My personal "go to" for dial up is SWFA, but I have a self imposed limit of 700yds. I struggle to get a shot overy 300 yards...I mainly hunt very flat land.