I'm playing a bit with the XF90mm since a few days and I have to say that the lens is the best in Fuji's lineup and probably my favorite so far.
Sharpness, colors, bookeh, contrast, ... I'm speechless.
You can find a full size JPG file here: http://j.mp/1H9gVCn
Taken outdoors with one flash @ f/2, ISO 200, 1/180s
I didn't tweak the sharpness at all. I only converted it to B&W and added the frame in Photoshop. The color profile used in LR to develop it is Provia.
Just to clarify what was done: I didn't sharpened the image nor did I tweak noise reduction. Opened it in lightroom, used the Provia color profile, cropped it slightly, sent the picture to Photoshop, converted it to black and white, added the white frame. Then I saved the file using JPG (12, maximum). Done. Nothing esle.