Really excellent sound design! At first I was a little skeptical of the heavy muddy sound mix-wise but then when it broke up around 1 minute in it paid off more than well. Great track!
Listening to it again, and I really like it. I do agree that after about 1:30 or so when it "opens up" it really hits its stride, and I go from like, yeah this is good, to wow yeah this is great after about 1:30. It leaves a great after-taste and makes you want to listen to it again.