i used their italian mink perm straight and it never matted or tangled or even shed. not one hair. and i was using pantene on it cause i didn't know any better! LOLLOL!
you just have to stay away from the regular hair they offer.
their cuticle (which is too expensive to me) and their italian mink is nice.
it's not as nice as virgin or remy hair, but way better than beauty supply....at least in the 4-5 times i used it before i converted to virgin hair. that is from my experience with it anyway.
the last time i used it was in 2006. i still have the old batch because it could be reused in a pinch. and my old stylist still uses it and her french refined is always on point.