Beautiful artwork, disappointing plot development.
Watch only if you don't mind unexplained motivations and emotional scenes that carry very little weight (due to unexplained or weak motivations).
It could be just me and my preference for certain types of plots, but I thought this held a lot of potential and was disappointed as a result. Reserving the reveals for the end left it feeling like a confused, mish-mash attempt at an ending with loopholes to make it work. It simply wasn't believable, even given the myth-like feel that it has.
There's beautiful artwork and an interesting plot line surrounding a very strange family (to say the least). The artwork is clean, colorful, and almost radiant, matching its strange characters in turn.
I appreciate how the anime crosses weird, clean-cut, advanced technology with folklore to create strange and interesting characters. Character-driven, there's a distant plotline that's followed, but the characters' internal struggles take front seat until the end (when the makeshift ending happens). Unexplained motivations, again, made for an unbelievable ending, but if you are willing to suspend belief and accept the fact that the ending will be sub-par, at best, then accept your fate and give the anime a shot.