Definitely my favorite episode of the entire series, and an amazing episode from start to finish. I'm not much of a shipper, but I do enjoy how the Leela-Fry relationship was played out in this, from a whole new perspective. The emotions showed by the two were great, and even touching at some points in the episode.
Aside from that, I liked how they were able to squeeze in a few jokes ("Don't Worry, Bee Happy" stands out) and references to past episodes (the funeral scene is full of past characters).
Need more eps like this, and less bitchy cyclops malcontent please.
Overall, it's a brilliant mix of emotion, humor, sci-fi and continuity.10/10