The 85mm G has a reputation of being one of the sharpest Nikon lenses out there and I see no reason to argue with that. For it’s price it really does a great job with bokeh, sharpness and colours. I’ll let the photos speak for themselves.

First, the comparison from f/1.8 to f/5.6:

f/1.8

f/2.8

f/4

f/5.6. Note the slightly hexagonal bokeh.

And a few more examples: