VERY well made animation, reminiscent of Anime and Manga. Fleshed out, three-dimensional characters that weren't just 'there', they had meaning and purpose to them. Thoughtful writing, the 'cast' behaved exactly how humans in those circumstances would and should. The world they found themselves on and its native inhabitants were extremely interesting, and more multi-faceted themselves than in a lot of cartoon and live-action sci-fi films and TV shows than I've seen in a long while - different enough to be quirky and unique without going overboard. This was a show to be 'experienced' rather than just watched.
Only reason I've marked it a star down is because of the number of cut-to scenes that sometimes broke the narrative up unnecessarily. Could have been done another way, not sure what that way might be though. Saying that, overall the show was quite incredible, HIGHLY recommended and definitely deseves at least another series, if only to tie up any loose plot threads. Can't wait for Series 2 if it does come about!!