The ending delivers big closure for all characters, but the latter episodes becacome a big exposition dump, with great revelations and mysteries nonetheless.
Shinohara Kenta is really good at doing just that (characters talking interesting stuff in the same room) because his previous work in Sket Dance was exactly full of that, but worked a lot better because of the premise.
This series starts as a solid survival through unknown space planets in a very neat way, describing the planets with enough detail to make them feel alive while also juggling some great scifi concepts which become darker as they progress.
By episode 7, the level of mystery is tremendous, but also the the planets take a seat as only a background for some scenes, and most of the story is developed by characters just talking and talking in the living room of the ship.
Once the series arrives at the end, some developments which would have required more action are cut short to just more exposition.
That left a nasty feeling after finishing the series, but I can't deny the trip was a lot of fun with characters with strong personalities and great developments of themselves, you can truly say that everyone is a different person after all they go through.
