I have had the Nikon ProStaff on my 30.06 and have found it to be reliable, to have a good field of view, and to handle the elements. On my last hunting trip we were subjected to cold and icy conditions. My Nikon ProStaff had no trouble with the conditions and I would recommend.
Pros: Meets Expectations
Cons: None
This review was written in the old system and had content requirements that are different than reviews written today.