I tried AROS on a Mac using Parallels. Networking was terribly slow there. Worse still: the whole (virtual) machine hung until the transfer was completed. One of the CPUs would go to 100% load and all you could do was to sit through it.
Well I am sort of glad that I had these problems with AROS/Parallels, else I wouldn´t have had enough reason to get my Sam440. And the Sam is pretty cool.