I really need to try one before I just buy it based on what you tell me. There is a demo from Mamiya coming to Calumet here in Fort Lauderdale.
I won one on eBay for $3000 (Mamiya AFD II with 80mm F2.9 and a ZD 22MP Back (The Original not the newer Double Duffer update the sold later Link)
but they never sent it. Adorama really messed me over.
So I think I will save a little more and go with the Phase One P20 21 25 30 route... I can even keep track, then there is the M18 M21 M31 series from Mamiya and i havent even talked about a Hasselblad. Mamiya AFD II