This is a camera intended for event shooters (weddings, ceremonies..) and documentaries, who else in this pricerange gives you full Canon lens compability (stabilization, video usable AF), with s35 DOF ?
About the price, make these considerations, if you don't have a other equipment, from the 5500$ of the c100mII subtract about 750$ value for 3 good NDs that you'll have to buy for other cameras (and hey, a click and you have your ND applied, clean from dust and fingerprints and without time to open the mattebox if u use it), subtract the price of a double XLR adaptor (no idea about the price, but it has a cost for sure), subtract the price for a cage with top handle and in some cases (if you compare it with 5DmIII for example) subtract the price of an external EVF with unsecure cables that can break when you really need them, since the c100mII has it built in and it's supposed to be real good this time.
If you do not grade (stylize) your footage but simply color correct it to make it look natural you should also subtract the time and costs of grading it since the C series creates the best looking video out there in this price range, and probably c100mII will be even better (maybe not maybe yes.. time will tell).
If like me you also work with gimbals (I use the DJI Ronin) you need a short camera, and light, on my last feature I've been filming with Brick-Black-Magic production camera and EOS lenses, sooo heavy guys and so much battery usage.
Imho the price is just slightly overpriced, not that much, what I would love to know before buying it are the possible future upgrades (10 bit hdmi via firmware, 4k, h.265)