This review is spoiler free.
One of the most beautiful and powerful animes I've seen.
While the anime takes quite some time to settle its characters, the few final episodes are heartwrenching. I cried my eyes out like I did for animes like Angel Beats, Little Busters Refrain or Your Lie in April. This anime belongs up there. In terms of emotional potential at least. The pace is unequal, the soundtrack (apart from opening and ending songs that are really wonderful) is standard, and original ideas in the scenography still lack (thus the fact that I didn't give animation a grade, it really is irrelevant in AnoHana), but you can forgive that when you just want to cry and let it all out. To be fair, while AnoHana clenches to its themes, it develops them and goes deep into them : mourning, adulthood, and even religion, giving them meaning and importance. When writing a story about mourning, you don't want to forget about those who remain, who have to deal with their feelings. AnoHana deals with them. I liked that.