I picked up mine on Friday. It's certainly a bit more portable overall than lugging the f/2.8 version around. I was shooting in extremely wet Vancouver BC at the weekend but I'll see about posting some images.
I'm using it without the optional tripod mount and it's nicely balanced on the D600/D800. f/4 is ideal for me really for the travel use that I want it for. I'd describe it as being similar in size and handling as the 200 micro.
Note to self: Avoid visiting dealers on Nikon delivery day! I was paying a visit to Glazer's in Seattle to pick up some sundry items and they happened to have one that wasn't on pre-order so ...
Overall I'm very pleased with the lens so far. Bokeh is nice too with no apparent issues with out of focus highlights which render as nice circular spots in the limited shooting I've had so far.
Anyway, here are a few for fun & giggles.
1s 122mm @ f/5.6
15s 82mm @ f/11 (vignette was added btw)