This is all kinds of badass. \m/
My complaints are few and fairly trivial in the grand scheme of things, because they really don't take away from the song at all.
First, I think the guitars are ever so slightly lacking some presence, overtaken a bit too much by the drums (Notably the kick) and the vocals. It's not so much so that it ruins the experience any, but it does feel like they could be pulled forward just a tiny bit.
Second, it's so short... I'd love to hear a longer version of this.
And honestly, that's about it. I could list the fact that I'm not a huge fan of straight up growl/scream tracks, but I can't really dock points for that, because that's really my personal preference, that I like to hear some singing in metal as well.
All that aside, awesome riffing, awesome vocals, I really liked it, keep it up. \m/