Single AF is the best i have ever seen on any camera. Its precise and fast.
The continuous AF on the XT1 is great, I doubt any new owner will be disappointed, though that doesn't mean the camera is ready for pro sports / wildlife photography.
Anyway, i find it puzzling that i cant pick my favorite speeds at least for CL. At 3fps its too slow for my style of people photography (i prefer 4fps) and i usually like my CH set at 6fps. At the moment i haven't found a way to set this, so if its possible please someone let me know! If I'm right and Fuji have no option on this, then i sincerely hope a firmware update can fix this soon.
I would also like to say to any newcomers to the XT1, that continuous shooting is a bit weird if you are used to a DSLR. When you half press the shutter release the viewfinder gets a bit fuzzy. Dont wait for the screen to get in focus, just press the shutter. You will then notice that all shots are focusing as you shoot!
I shot this sequence last week under overcast conditions. I haven't incuses every frame, just every second frame. All in focus. I will have more info soon on my blog