You will find that the grain is MASSIVE. Even on fine grained colour 100iso film B&W film of the same sped will beat it hands down, I think it may be something to do with the red dyes not being recognised on B&W paqper
My aunt is a professional portrait photographer. Toward the end of her film path, when digital was starting to pick up, she would use chromogenic C-41 film for some of her personal/family stuff she still wanted to print in the darkroom. I have her enlarger now, and she told me if I wanted to do it, the exposure time is almost doubled, and increase the contrast filter to around 3 or 4 on Ilford paper.
Maybe I was lucky(in the sense of using VC paper and maybe having no reds in the neg) but I was very pleased with the results. They were 1970s colour negs and had suffered but the B&W prints were very good. Not what you'd get with a B&W neg of course and if B&W is your thing then go for B&W but if you want prints from old colour negs that may be fading or simply want to have the occasional B&W prints then the results in my experience aren't bad