Another reviewer had a lot of good points made about how the characters made horrible, illogical decisions. Somehow, when I watched it, it seemed to make sense. I think after watching Re:Creators (Which I think is the most illogical anime, and has the most unrelateable characters), I've been feeling like any anime I watch now is golden.
I thought the pacing was amazing and was even saddened when I was at the half-way mark. To watch this anime, you should know that this entire anime follows the children from birth, until they get a lot older, so it's definitely gonna be a slower anime. It's masterful storytelling of which I've never seen in anime yet. I thoroughly enjoyed it.