The wraparound story is a bit wank, but the three inner stories are all unusually strong.
Dante The Great: is fun, some cracking effects and a decent ending.
Parallel Monsters: was probably our favorite. Guy invents a dimensional doorway in his basement, meets another version of himself in a version of our world where things are a little odd.
Bonestorm: A pair of annoying slacker skater pricks go to Mexico and do, like, a gnarly Jason And The Argonauts tribute thing.
So, yeah, if you like anthology horrors, you could do bumloads worse than this.