So I got the EF-X1D adapter a couple of days ago and had my first chance to try it today.
The adapter comes with absolutely nothing. No instructions, no charge cable, no front or rear covers.
So you will need a USB to Micro USB (Samsung style) charge cable and probably an XCD Rear Lens Cap and a Canon EOS Body Cap.
The instructions are sort of available in Chinglish on eBay where you buy the adapter.
The shots today were just to see that it worked and if there was any vignetting or other usage problems.
It all seems to work Ok. To turn on the adapter, dial in the F stop you want and press the thumb wheel in as it is also the button to set the aperture. Press again to release.
Set the camera on Electronic Shutter.
I set the camera's wifi to fire from my iPhone.
An iPad would have been better as you could then check the focus easier. I missed it a bit.
Also with the iPhone you need to set it to Aeroplane mode. I am not sure why, but it is probably an IP address clash.
Anyway, the good news is that it works and so I now have a portable medium format kit with tilt shift. A similar thing with my previous H4D would have required the big and costly HTS adapter.
There is a significant delay in firing with a dark period in the EVF and so tripod only work is the go I think.