The 18-140 is basically better than the 18-105 - but as long as the automatic correction in the camera for the 18-140 does not exist (for the 18-105, however, already) delivers the 18-105 but less distorted images on my D7100!
It's embarrassing that about 9 months after the availability of the relevant lens Verzeichnungskorrekturen (available from Nikon for almost all AF lenses) are still not updated. Updating this file (S-DCDATA-001009WF-ALLIN-32BIT_.exe) would resolve the deficit for all current Nikon cameras (since the generation of D5100).
Other software vendors do not have this problem! - DxO example can fully correct the lens. Only Nikon creates not. If you "develop" the images of 18-140 with DxO Optics Pro are super! - I hope that such "super-images" soon directly from the camera will be available.
The Bokeh of 18-140 I like much better than the 18-105.
The images are sharp and rich in contrast - the autofocus is relatively fast - the VR works reliably. If the "Software-deficits" would not be ... the "Hardware" is very good.
Although I knew beforehand that the lens without purse and without the lens hood is supplied, but at a price of currently just over EUR 400, - I feel that the audacity - considering the list price even more.
If Nikon would back-expand the scope of supply on the "normal level" (at least Gegenlichtblende add) then I would give the lens already a star more. In the production that are pennies. - For the customer another acquisition.
The fact that this is actually great Nikon lens automatic distortion correction of Nikon cameras currently withholds, leads me to another star deduction. I have requested from Nikon - currently no date for the update is known. I even had the feeling that the support did not know what distortion means ... ;-(
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Addendum October 2014
There is now a new firmware for the combination with my D7100. The correction has been incorporated. The lens now brings full power which I had expected from the beginning - Finally.
I have therefore updated the rating of 3 stars to 4 stars. - The absence of the lens hood and quiver me was indeed known in advance, but I still feel as insolence!