I've heard a lot of people like them though my nephew bought one and it would not adjust at all. It would drift all over the place and the glass was not very clear. He may of just got a bad one but we took it off and replaced it with a Zeiss Conquest. We thought it might be the mounts but we took it completely off and remounted it and it did the same thing. We have Zeiss scopes on 4 rifles now including a .450 Marlin and a .375 H&H and never have had a problem with them.