This song has very interesting progression setups. It starts calm, then with dub-step order, the drop kicks in. I'm going to add this to my Wipeout HD playlist for an unusual experience. Not many songs have that unique quality.
What I like to hear is a more complete ending feel instead of just a simple fade out. If the ending is going to fade, the progression order should lead to a calmer end instead of fading on the excite stage. Another problem is modulation feel. It should have calm parts in the middle without the beats to break apart from the excite state so that it doesn't wear off the listener when they listen to it.
Realistically, I should be rating a 4.5/5.0, but I want your song to have more exposure. I see potential from you.