It was a pretty good episode,and a good place to end the season (I'll miss having new episodes for awhile,though....Since Fullmetal Alchemist Brotherhood took a break,Futurama's the only show I've been watching on TV)...
I liked....
Bender's party,and his later realization that the party was meaningless without his friends (and Zoidberg

.....I loved that the picture that Bender has of the Planet Express crew has everyone front and center except for Zoidberg,who's waving from the back)...
Fry accidently blurting out that Leela was a mutant,which ended up getting her sent to the sewers (along with the rest of the crew minus Bender,when they revealed they knew about Leela)...
Fry mutating himself for Leela so he could experience what a mutant's life was like...Everyone's grossed out reactions to Fry's mutated self were funny as well... (I was curious as to how they were going to get him back to normal....turns out,he wasn't actually mutated,he ended up in the mouth of the mutated Mr. Aster)....
and Leela meets an old mutant survivor of the Land Titanic,saved by Mr. Aster,who turns out to be her maternal grandmother...