I've handled the Hy6, and shot the 6008AF a few times. As compared to the V system, its incredible. The AF is useful. Auto advance is nice, nicer than the horrible V winder. The Schneider lenses are different than the Zeiss CF lenses for blad. I like them very much. For people photography it is a much better camera than the V system. Meter works well.
My only issue with the Hy6 and 6008AF is the cost. For me, I couldn't justify the expenditure, even when I was making a living from photography and could write it off. Also, as a magazine photographer, the square did not work for me. The RZ was a better choice, or 35mm digital.
If I had an extra $10k laying around I would buy a Hy6. No doubt. I think it is the best camera still manufactured.