Awesome!
Great song, just one critique.
Percussion means a lot to me, and It's probably my favorite part of any dubstep track. I like everything you got except the snare. The snare is just too whimpy and dry for such heavy kicks and prominent hats. Try layering it with some clickier snares and maybe some...snarier ones? Dunno how to describe it really. But I'm sure you get the picture :p