Nice! This track pretty damn badass. The bass is very front and center, but that's good because it sounds awesome. It totally sets the tone to the track, it sounds very oppressive and serious. I love the dark vibes. >:]
The beat is simple, snappy and clean and fits the track very well. It has a lot of punch, making the whole track feel powerful. I also love the little electrical sounding percussion towards the end of the track.
The song changes slightly periodically, which gives subtle changes to the mood and gives the listener variation so you don't get bored. I could listen to this for a while, honestly.
I'm not a huge fan of the vocal samples personally, but that's just my taste. :P