How bad is it? More weird than terrible, it's still not good.
Should you see it? Yes, but not because it's so-bad-it's-good.
I've skipped over reviewing this a few times because it doesn't quite fit the blog's premise. Like all Italian fantasy films of the 1980's, it has a "Road Warrior" feel to it, even though this is supposedly based on the H. Rider Haggard novel - it's not, by the way, except for being about a leader of Amazons. Sandahl Bergman stars (and takes a bath, for those who wonder if Sandahl's body is a focus of the film). There's elements of parody and black comedy with anachronisms (chainsaws?). There's psychopathic monks, mutants who clone themselves when they lose an arm, a guy who can levitate his enemies, a mad scientist, vampires and some silly dialogue. The plot, for what it's worth, is the retrieval of a kidnapped girl.