This album is pure evil and ahead of it's time. God bless Reign in Blood, but this album is in world of it's own. The musical arrangement is awsome and there many lessons to be learned. It's very underated and kind of colors in the gray between Show No Mercy (which was comic book silly) and Reign (which was awsome). I haven't heard too many main stream metal bands make a recording like this one, even Slayer themselves. A must have for any thrash/speed freak.