I'd say..
I'd definately say dubstep, because most of the part is DnB, and most of the time dubstep has 140bpm
For the song, I won't say it wasn't good, but the first part just didn't do anything to me. It's probably because the riff at the very beginning didn't really match with anything in the rest of the song at all, at least looking at the melody.
Until 0:49, I kept having the feeling there wasn't a single solid note in the bass. The square melody, however, was something to my liking.
The part after that until 1:22 was really nice and solid.
After 1:22 was what caught my attention, because the bass melody was awesome, dark and the rythm was also cool. I did miss something that could fill it up a bit more, a sub bass would be awesome :D
From 1:49 it got back to the nice melody and great phat bass :D
but at the outro the first riff came back in, that was a little disappointing :[
So to summarize things, I really liked it, except for that first riff :]
Good Jawb! keep it up :D