Mediator offers better support from Elbox in terms of drivers available.
:-D
It's true that there was no new release for GREX drivers for Wb 68k, because they were already good (not like the hacky USB RDB killer by Elbox), and it works very well also under MorphOS, especialy for 3D.
A custom CMS support interfaced with a PAL/GAL programmer would be enough to update a rev0 to rev2 :-) .