I've made the pilgrimage from 35mm to MF (via Mamiya 645's and a Fuji rangefinder) to a 500c. We could talk and discuss for hours about the Zeiss lenses (I only have the 80 Planar which is great) and their quality, etc. The real challenge you will have in moving to a Hassey or any MF is how you choose to view the world which you photograph. The only way to truly enjoy 6x6 is with a WLF. It dramatically changes how you see things, it's different from using an eye level finder, much slower, but that's not a disadvantage. As an everyday camera? I don't think so. I use different cameras for different situations. When speed is critical (shooting ballet or modern dance) only a 35mm will allow you to move with the speed of the dancers. However, if you want to do some interesting street shooting, landscapes or revealing portraits, your Hasselblad will be your best friend if you take the time to know it. I also have a 645 Super with a full range of lenses, prism viewfinder, etc. It's a great machine and I enjoy using it, but the 500c forces you to slow down, take your time and really see what's happening in front of you. Before you sell your Nikon gear, play with a V series Hasselblad or even a RB67 and see if you enjoy the very different change in workflow. You might find that there's room in your universe for both.