this is my first review so please dont take the stuff i write too siriously. I'll try my best thought ;)
I really like the sound design in this track, the basses got a lot of punch, same thing with the drums. The kind of squelchy sound on your break parts is the thing i like the most if I had to pick one thing from that track. It has got a great mellow feel to it. The mixing and mastering is well done too. No annoying frequencys in the higher register and next to no resonances in the low end.
Now to the bad.
I dont really like your arrangement. For me it drags on for too long, this song could have delivered all of its parts in 5 minutes. I get that you arent going for the edm/skrillex type dubstep with heavy "drops" and crazy melodies all over the place, but you could have included some risers or build ups (or atleast some longer quieter sections) to raise excitement in the listener. However the song flows along nicely. For my taste theres to few variation in it though probably because the song is too long.
So my verdict for your song is going to be 4 out of 5 stars.
The song has a nice concept! Keep it up ;)