I like the ominous beginning, but I didn't like how you used that open hat at :09. Maybe it's just not my style, but the rhythm of the hat was a bit distracting from the melody. Speaking of the melody, I like it a lot! It's catchy and fits with the ominous beginning. 1:00 was a pleasant surprise. I was totally expecting a hardcore drop there, but suddenly it was chill again. As for the actual dubstep part, I thought it was incorporated well with the rest of the song. I don't always like vocals used like that, or dubstep in general for that matter, but I like this a lot better than some other stuff I've heard. I liked the ending, too. Keep up the good work! :)