Thia song just kicks ass. The best remixes take an already awesome song and turn it into something even better, which is exactly what this does. The sound quality is just excellent, but we're talking about a professional composer here, so I guess it's no surprise.
Anyway, the song progresses very nicely. It takes its time to build up, and the progression from :25-40 was exceptionally well done; the dynamics in this section were perfect. The next section that really struck me was 1:06-1:45, as it builds up with a lot of intensity and power.
The only thing I'm not fond of with this song is when the piano plays the lead. Thankfully, it's a pretty short section, but the piano just doesn't sound right carrying the lead.
Besides that, there's nothing else to criticize. The song could have been longer (you always want good songs to last longer), but it's no problem since the conclusion is definitely climactic and satisfying enough. So yeah, this song rocks. It's good to see someone who composes game music give the fan community such a great song.