Not a lot of D600 failure reports

Mine has 2000 exposures with no problems and perfect results.

I'm surprised how well many older lenses work on the D600.  For instance, my 30 year old Nikkor 24mm f2 is noticeably sharper (at 200%) than my 24 70 f2.8.  Likewise for a 40 year old 55mm f3.5 macro.  However, a 25 year old 14mm f3.5 produces very soft results.