the series had fantastic animation and a breathtaking soundtrack, but the plot never really went anywhere and towards the end it just got really dumb. if they just stuck to stories about the ruin it might have been better, but they actually tried to form a linear plot starting from the halfway mark, which would have worked out fine, except the execution of it all was horrible. it felt like you watched the entire thing for no payoff whatsoever.
it's quite a shame since the series could have been so good.