I've never left a comment on any show I've watched so far but this one takes the cake.
I would say this is my favorite show I've watched and the ending it left on was so impressionable that I literally felt depressed when I finished and had to drown my sorrow with several more light hearted animes.
I will also say that I don't ever get emotional with shows but this one really hits hard. I 100% recommend this show and don't know why the ratings aren't 10/10.