The Nikon AF-S 85/1.8 struggles a bit at its largest aperture on the tiny CX sensor, but stopped down the results are very good to excellent.
As can be expected from a lens designed for a much larger sensor, distortion and vignetting are no issues at all. CAs are very low, too.
The build quality is on a high level and in line with other Nikon consumer prime offerings. Thanks to an AF-S drive, the lens focuses virtually silent and is fully compatible with the FT1-adapter (within the limits of the adapter itself, that is). AF speed is quite fast for a lens in this class.
The blur potential of the lens is of course somewhat reduced compared to cameras with larger sensors. Still, the bokeh quality is on a high level, the only real issue is the quite high amount of bokeh fringing.
For anyone who already owns the lens (and also a F-mount camera with larger sensor) it's certainly worth exploring the capabilities of the AF-S 85/1.8 on a CX camera.
For those who only own a CX camera, the lens may be a candidate to deliver images with narrow depth of field (narrower than with native lenses at least). Combined with the necessary FT-1 adapter, the setup becomes rather bulky and also somewhat expensive, though. In addition, the lens does not really perform too well at the largest aperture when mounted on a Nikon 1 camera. On the other hand: if narrow DOF is what you're after, choosing a Nikon 1 camera was not the best idea to start with anyway...