Ok, I have to say that after having started to use MF-digital - in real life I feel quit some limits compared to my M8 and D3 systems.
1) Maybe this would be different with a micro-lens-digital back but so far I feel very much limited to have to use ISO 100 or 200 with my MF camera.
This means to a) use a tripod or b) use flash or c) work with shallower DOF than I usually would like to have in at least 75% of situations.
2) AF- well-the good thing is that manual focusing works nice with the bright and big viewfinder of my Hy6. The bad thing is that the AF is so slow and hunts so much plus the AF-point area is so large - its just much much worse than a modern digital SLR (I find this for both the ZD and the Hy6)
3) If everything is perfect the quality of the (MF) images is great - and I like the feel and the slower pace of MF photography but my keeper quote of images went down worse than the stock exchange over the last weeks.
4) My dream: A sensor without AA-filter, 16 bit, in a Nikon D700 body with Leica-quality lenses - it could replace my M8, D3 and MF