it really really grew on me. I was originally pretty eh on it; now, i listen to it a few times a day. this and 3:12 are pretty addictive. Can't wait for the botan one; I don't think ive ever heard her sing a solo song.
Heres a translation of Unison (read the comments to understand what was lost in translation tho):
https://www.youtube.com/watch?v=QxpSoLCzpxM