Really nice, really interesting piece. The obscured vocals and the erratic rhythms combined to make a wonderfully hazy and unique atmosphere, which in my mind struck a perfect balance--it sounded neither rigidly controlled nor sloppy. The sounds you chose were all really well-suited and tasteful--I particularly enjoyed the drums (there were some seriously complex beats hiding here!) and the bass that came in at 2:13.
The fact the piece was almost entirely consonant made the occasional "off" note seem very jarring (for example, in the little cluster at 0:14, or the grace note at 1:50). This didn't happen a lot, but it really stuck out when it did. I think the piece might have been better either if you had removed the dissonances entirely, or if you had included more of them to make it seem less unusual.
However, I don't have any more criticism to give. This was just a really pleasant, slightly off-kilter piece. Good work!