The character's were memorable and some were even likable but there is just so much crying, screaming and psychotic break downs in the series that it's unbearable at times. I understand this is an apocalyptic event and the creator's are trying to portray how young adults would react to a situation like they are put in but it's still extremely excessive. There's also a lot of events that happen that are never explained fully or not at all leaving it open for interpretation or another season to play out. I feel like this series is ridiculously over hyped compared to most anime I have watched and shouldn't receive the praise it has got.