Well, perhaps a few days short of a year, but it was this month a year ago that I acquired the D600. I remember, on one of the first outings being blown away by the dynamic range of this camera: with my old D80 I had become quite used to blending three bracketed shots to capture a high dynamic range scene. In the last year, I cannot remember ever having to blend shots with the D600 - I shot bracketed many times (an old habit) but never used more than one shot in final production. Today's shot of the Oxford Farmers Market is a case in point - one exposure (actually a four-shot stitched panorama) and everything from the distant clouds to the shadows under the market stools is well exposed (shot RAW and developed in Lightroom).
So, a year on and I'm still loving the D600 - can't blame the tools any more :-)