I am, since first day of sale in the morning... Couldn't wait.
Its a great camera. Image quality is great, I needed a day or two to get used the handling and configure it to my needs, but since then, it feels very natural. I use it every day since.
For a first model of a new system, Fujifilm did really great.
My kit is the camera, the 63mm, the 32-64mm and the tilt-viewfinder adapter. The adapter is extremely expensive, I think, but its just phantastic. I use it all the time. Currently, there are very few things, that I can think of, that I don't like.
Image handling is still a problem, though. Lightroom does not support the files and I have to convert to tiff via Silkypix first. And I really don't like Silkypix, awful Software. I hope, Adobe is quick finishing and releasing support. Capture One would also be fine, since I'm just waiting for some time to make the switch...
Last night, I used the camera in the rain, and it did get wet, but was very versatile.
... i could say a ton of things about the camera, where should I start... It's a great machine.