This is definitely a song that will grow on you. As I write this review, I'm actually going back and rewriting things I previously thought about this song because it keeps getting better the more I listen to it. So, I suggest going to his SoundCloud and downloading the mp3 to put on repeat. 'Problem?' starts off very heavy on the snare and dub-type stabs, like most dubstep songs.
Welcome to Dubstep everyone! This is a World dedicated to the howtos of Dubstep production. I will make updates around the genre and post them as blogs as well as build a database of howto videos on creating Dubstep music, resources and ideas.