Very subtle. Besatt is a black metal band from Poland, which is a surprising hotbed for extreme metal. The band takes influences from second wave Norwegian black metal and first wave black metal bands such as Celtic Frost and Bathory. The band's sound is an unholy combination of its influences.
Besatt's riffs are delivered in a buzzing, tremolo style, befitting the genre. There are often only one or two riffs per song. Again, fairly typical for the cult style of the music. The drums are almost solely blast beats buried underneath the buzzsaw guitar sounds. The bass cannot be heard at all. The production is extremely lo-fi.
The vocals on the album are delivered in a typical black metal shriek. The lyrics are about Satanism, the occult, and Anti-Christianity.
As for the songs themselves, "War" is probably the best track. It features samples of medieval warfare throughout the entire song while the music is playing. It gives the overall effect of absolute, massive chaos. Hearing people screaming and sword clashes throughout the music somehow fits the style. It really must be heard.
All of this basically means that this album is representative of its style. It could also mean that the album is very cliche. It all depends on the listener and their enjoyment of this particular style of black metal. I happen to enjoy the style, and this is an underrated, unknown gem.