I've been weighing up the pros and cons of the Df and, whilst I very much like the look of the thing, I've come to the conclusion that it is a bit daft! For myself and, I guess, for most of you too, a camera is just a tool to do a job. As an ex-member of the Leica forum I know all about fan-boys who could not take a decent photograph to save their lives and use their camera as a badge of wealth but, from what I've seen and read on this forum, we ain't about that.
So; on the plus side: to a bloke my age it looks like a "proper" camera, the controls appear to be pretty well thought out, are lockable and seem to have sensibly-weighted detents. all Nikon lenses, since day one, will fit (apart from a very few specialist tools, of which probably none are still in use anywhere). It is not physically oversized or weighty, there is no flimsy pop-up flash on top. Technically it has all the good bits of the D4 in a less costly casing.
Cons: it comes with a useless kit lens (UK, not USA) which existing Nikon owners would not require. Price seems high, compared to other Nikon products with same/better capabilities., e.g. it will not shoot video (whilst this last point does not matter to me, the Broadcast Quality video capability of the D800 is truly amazing). Ergonomics- it has taken a 30-year step back in time; modern technology has allowed production of shapes which conform to the human hand which simply were not available back "in the day", we had to mould our hands to fit the tool, rather than the other way around. Silver finish; rather than being chrome electro-plated on brass, it is spray "chrome paint" on magnesium- given the bashing and banging that working cameras get, instead of looking as attractive as a pair of old jeans, it will look simply tired. Black finish too, speckle paint on white magnesium- not good.
It will be interesting to read comments from folks who have used these tools in live situations but that will not be for some time. DP Review seem to have had limited use of one and the most telling comment for me was:
"... although I hate to say it: from a cold, hard practical point of view, I can't shake the feeling that the Df is a little bit... silly. Hardcore Nikon fans will point to the support for 50 year-old non-Ai lenses, which is valid, but I suspect that the constituency of photographers for whom this is a real selling point is vanishingly small."