Sanctus Ignis is more like Underworld just not quite as elaborate (Underworld had the benefit of being their second album...bigger budget). Dominate brings in a new singer who introduces some occassional death style growls and the overt neoclassical influences are not nearly as prominent. So it's a change of direction but still very tasty. Frankly I'm not sure they needed to make another Underworld. Nice to see them stretching out a bit.