It's heavy, the glass is not quite Leupold VX-3i but usable through legal hours, eye relief may be critical on a harder recoiling rifle and the eyebox is less forgiving. None of these are deal-breakers in my book if the scope "aims" good.
Adjustments are very tactile and precise and it returns to zero every time. I have two Nightforce scopes and this thing dials just as good, which led to me buying a 3-9X42HD for my SPR. That scope has better glass and is FFP while the 3-15 is SFP, which I prefer for hunting, though I am finding the reticle on the 3-9X42 usable for hunting, just a touch on the small side at 3X. Parallax is adjustable down to less than 10 yards on the 3-15.
As you can see in the pic, potential for a long shot exists so the scope's ability to track is important, and this one has been very precise.