I wanted an allround lens for daily/family duty to complement the 50/1.4 and 180/2.8 on my D700, and this lens really fits the bill. Iīve had the 18-200 and 16-85 for my D300 earlier, and this one is not as good as the latter, but better than the 18-200. The VC is also better than the Nikon VR, simply, almost eerily, locking the frame even at the long end.
Surprisingly noisy focus and VC (after using modern nikkors), but acceptable. I feared light falloff but thatīs not an issue. Not pinsharp on all focal lenghts, but quite good. Build quality is ok, but could be better, Nikons modern optics better in this respect (although I got tired of the grinding focus noises from both my zoom-nikkors).
Donīt listen too much to people telling you that you need the best optics on the D700 (or that you could have bought something cheaper): With this lens and the D700 on auto iso (I use maximum 6400 which is simply less noisy than 1600 on the DX sized nikon AND canons imho) I have the perfect and flexible tool for allround photography. Lots of opportunities would be lost if I had to change lens, my D300 (auto iso max 1600) would not manage to freeze motion in many conditions.
There is also a positive side to the not so large apertures (but subsequent higher iso instead, which on a D700 is more than acceptable) - Focus placement is not as critical as on the F2.8 - F1.4 lenses. But for low light photography, nothing beats a 50/1.4.