I have a Mediator, it just do the job for me (a Voodoo3 and a NIC), but it stops me to use a Subway!
Why? We have a lot of customers with SUBWAY and Mediators working together nicely, as many people prefer a real Amiga classic hardware solution which is supported in a good way by software. The flat ribbon cable of SUBWAY makes it possible to mount it below the bus board.
Where do you see a problem?
For whatever reasons Elbox has announced some time ago that they would manipulate their drivers to cease operation in the case of E3B hardware being present in the system, but they (AFAIK) have not dared to do so up to now (maybe because they finally understood that there are rules on the European market concerning fair business...).
Michael