Human started to break Death to a wider audience, after Chuck Schuldiner nearly disbanded the group.
Schuldiner's playing has improved immensely since Scream Bloody Gore, as have his compositional skills.
He writes strange, dissonant, harmonized guitar lines and is one of the few death metal songwriters who changes moods and textures over the course of an album; Human's second half is actually almost subdued by death metal standards.