I did use them for a bit.
I like a nice Matt textured paper but found that the Marrutt paper kept shedding fibres after a print, leaving tiny white specs.
I do use Marrutt inks and they are a great company to deal with, I just had an issue with a particular paper. Not tried any of their other papers so can't comment on those.
I switched to Fotospeed and not had any issues since. Fotospeed also do free ICC's