It's my own opinion but the anime Eighty Six gave me a new experience of war.
It shows us the consequences of humanity's fascism and of war.
There is a bunch of cliches for sure, but the studio took a way to keep us with them until the end.
I mean, sorry for the Mecha fans, but I hate Mecha animes. But here, it wasn't a problem for me.
The chara design, the animations, the story, and the musics, everything was perfectly matching.
Well, to be honest, the new season looks scary.
Only one episode available right now (two in some hours), but the story is taking an... unexpected way.
Why not, but still scary.
And axx, it's sad, but I think the popularity of this anime is high because Hiroyuki Sawano worked on some songs (according to most of comments I saw since the first trailers). It's not the only reason, but it's 100% one of the main reasons.