I use it pretty regularly. It's quite high-contrast and vivid. I've had 3 different developing labs generate unacceptable prints because the combination of the film's high contrast and the machines' settings just make the contrast too much to bear. One has to find a lab that can set the machine to NOT adjust or correct anything. This might sound like stating the obvious on RFF. I don't know. All I know is that when using regular consumer-grade 100-speed films like Kodak "Gold 100" and the like, the labs' "auto" settings don't have the same effect as when UC100 is run through.