I absolutely love this. Expanding on the lore of Raxacoricofallapatorius, showing us more of the Raxas Alliance, telling us where Nine learnt about the tricks Blon tries to use in Boom Town.

I also love how defensive Nine is of the Chumblies. It could so easily have been a throwaway thing, but the fact whenever they come up he makes it clear that they're not chumblies is just super fun.

And then Slist is just a great character. I love that you get a Slitheen here who's able to redeem herself and her family. I love that even in her trying to be better she's still motivated by profit at first, and still puts a bomb in Rose. And I love her redemption, using her knowledge of pirate broadcasts to get the truth out there.

All in all, it's just a super fun story!