The vocals make the piece for me. After the first round of the singing, I spend the rest of the song waiting for it to return. The singing reminds me vividly of Princess Mononoke, and brings the beautiful imagery of that film to my mind. I've seen people bashing the chord change near the end, but I love it. It ramps up the intensity, and paired with the vocals that kick in, it sounds almost tragic. I love it.