OMG, that was awesome. I mean, they totally glorified the whole recording process, but still very enjoyable. (I just don't know how to get across just how repetitive recording can be. That's why I believe a musician has to really enjoy one's own music, since they (/we) have to hear it so many times.)
Also: great song. I wish they would sing in harmony more often, that was neck-hair-raisingly beautiful. But really, the whole song is just great.