I find that my C330f is used more often than I figured when I procured it. For me the logical step from 36mm was the 6x7 Koni Omega, but the seller also had the Mamiya in my frame of vision and when I made an offer, he took it - so I have both.
I often used the Mamiya "hand-held" using the waist level view finder, neck strap, and foot cord (info available on request). Clear images at 1/8 second shutter are possible.
Note: Finally I got back to the future with a Speed Graphic (when I first started photography that was considered medium format).