This song is a piece of art. It's heavy throughout and is definitely a banger. Although short, this song definitely proves quality > quantity to be true.
I think that the shock value (which as a musician myself I know is very important in metal music) has to be the guy's voice. It's powerful, high, and fits in perfectly with the song.
What I don't like about this song is it feels incomplete and leaves something to be desired. The song is very short and straightforward which isn't a bad thing, but it makes it feel to a certain extent incomplete.
Overall rating: 8/10 (only because it seems incomplete)