"In 1991, the films received additional media attention when actor Charlie Sheen watched Flowers of Flesh and Blood and mistook it for a genuine snuff film, immediately contacting the FBI to report it." LOL
It's torture porn, sure, but it was the first I had ever been exposed to and there's no denying the incredible special effects that were years ahead of it's time. This movie was made in 1985 and on a shoe-string budget but even some of the current contenders like HOSTEL and the ilk can't compare.
It is what it is: Torture Porn. I love Hideshi Hino as a manga writer/artist and you can see the graphic nature of his mangas's transferred over but none of the style, wit, or charm that made it lovingly gross and goofy.