Sorry should have read your first post properly (!)
The device is pretty fast compared to a Serial/Parallel link cable.
It boots standalone into a Wizard which prompts for a couple of Amiga copyrighted files from the Workbench disk then loads Workbench. The CF card is automatically mounted and EasyADF is then ready to go.
Here is the EasyADF program interface:
http://amigakit.leamancomputing.com/catalog/images/easyadf.jpg