I'm not in a place right now where images can be processed, so first impressions are just that: gleaned off the camera display. The lens handles pretty well on a Z6. There is no tripod collar but I can easily see a third-party solution to remedy this missing feature as the lens has a near-bayonet smooth surface suitable for that purpose.
Images appear crisp and sharp and flare apparently is quite well controlled. Bokeh is super smooth and pleasing. Cat's eyes creep in towards the periphery like with most modern lenses, though, but didn't seem too annoying. I cannot see any obvious CA nasties however they might surface when NEFs are processed (now I'm looking at in-camera jpgs).
So far, this Micro seems to be a worthy addition to the Micro-Nikkor lineage and much more well behaved than the F-mount predecessor.