I didn’t choose between the 100C's. I bought one to supplement my X2D. It’s great now having the capability to use my 500C/M and its glass natively albeit with the reverse crop factor (from 35mm but smaller than 6X6 film). Later down the road, I hope to adapt it to my 4x5 camera and see how that goes, probably not too bad but again, limited by the small sensor size.
Looking back, I don’t regret my decision to complement the X2D but I welcome the addition. Currently, for fast-moving sports, wildlife, portraiture, and street photography I’ll rely on my Canon stuff, which in its own right stands its ground with its unmatched capabilities vs the Hasselblad’s. I find the strengths of the Hasselblads start with their unmatched image quality, with some of the best-looking files I’ve ever experienced.
In the end, it’s just another tool in the toolbox, a rather pricey one for sure.