I would say that for those who really care more than anything else about completely effortless, as close to always perfect intelligent focus as possible, Nikon may be the wrong brand. Just from reading comments by posters in this forum who shoot multiple brands, it sounds as if Nikon remains a bit behind in this regard. My Nikon bodies work great for me and how I shoot, including under what I consider challenging circumstances. They are fantastic cameras and I make more mistakes than they do. But others have different expectations.