I've noticed more than a couple rap haters praising this track already, and I'm here to join their ranks.
Most hip-hop/rap doesn't do it for me because of two things: 1) stupid lyrics, and 2) nonexistant or boring harmony. Instead of rapping about bitches and booze, DCT wisely chooses a subject much more original and fun to listen to: music. The quality of the rapping itself is fantastic. Just Us is smooth and professional sounding, although it's a bit hard to understand at times.
I never thought I'd like an Ice Cap remix this well. I don't hate it because it's been done to death (lots of other songs are just as guilty), but rather because I've never liked the original song itself. There just isn't much meat to it. However for a rap song, it's just perfect. The simple melody and tranquil harmony is just enough to get the job done, but not too much to distract from the rest of the song.
Congrats DCT, for creating not only the best Ice Cap remix, but the best "serious" hip-hop remix as well. (Sorry, but it can't compete with Space Beam or Niggaz 4 Life. )