This remix is quite different. That is a good thing.
It is no easy feat to make an ambient remix, much less an awesome ambient remix.
As djpretzel said on the remix's page, it is very envocative of Pink Floyd. However, up until the 3:00 mark or so, I was also reminded of the also ambient (and quite cool) song from Cowboy Bebop, "Channel 23". I doubt many would agree with me on this point, but the guitar parts seem similar to me.
The ending, however, is just weird. The heartbeat is cool and all, but I would have preferred something to allow for a good looping of the song.
Still, all in all, pretty damn good.