So, after seeing some of the complaints on speed and extra efforts to make it faster i was a bit apprehensive about running under Fusion until the Mac goes live. . .but I was pleasantly surprised at how good it runs. I did no extra anything - same old 2.0 image I have used for miscellaneous things, older Macbook Pro 2.4 with 2GB RAM. It runs fast, stable, and totally usable.
FYI.