It's fascinating seeing the mixed reviews on the first page, because I always thought this episode was a great example of the show's strong continuity and how they had plans for certain arcs well before they really made any effort to resolve them.
Additionally, the ending. "The Luck of the Fryrish" and "Jurassic Bark" are usually the go-to episodes with emotional endings but this episode seems to be often overlooked for some reason. It might be because it ends on a much happier and uplifting note than the other two, but the fact that it marks a huge milestone in Leela's character has to count for something.
Now, I know this episode isn't the absolute funniest, but it definitely has its moments. The Professor's "two beeps means it's done" scene is one of my favourites of the season, and I also like the "Distinct aftertaste of toxic waste!" line.
With or without the funniness it's definitely one of Futurama's most memorable episodes for me. I know many consider this episode to be great, but I don't usually see much talk about it.