It took me a few listens, which was not unexpected - every Rush song takes me a few listens. But it absolutely rocks. It's heavy, it's driving, and the guitar solo is on fire. I also love the distorted voice section.
Two gripes: 1) They definitely could've condensed it a tad, but excess has always been a hallmark of this band so I can't complain too much. 2) Lyrics are not Neil's best work. He is capable of painting such vivid pictures with his words, but here he resorts to rather vanilla phrases like "All the journeys on this great adventure."
Overall, a great song. 8.5/10 for me.