Really Good!
The intro was mad long, way too long for most good songs, but in this song it actually did a good job. The intro set up the climax, which is where it gained energy.
The end part was very "epic" sounding, like in comparison to game music from World of Warcraft. Overall, it was a good song, though the intro could use some shortening.
Also note that not all songs that use stereo are liked by headphone users!