This album is a compilation of the "Evighet" demo and the "Undergång" demo (with a cover of Bathory's "Blood Fire Death" thrown in). The songs are epic, long, deep, and unique.
There are a couple noticable influences in Nasheim, but nothing that violates the borders of originallity. Also noticable is the song structure. The guitars seem to be perfect all of the time, especially the acoustics.
Since the guitar parts are not aimed to be face-meltingly technical, the bass guitars accent the songs in a way that is neccessary. Many bands who use a drum-machine lack in achieving a real feel and smooth sound, but Nasheim is an exception. The drums are programmed very well, with good fills and variation. The overall sound is excellent as well.