I throughly enjoyed this anime, in the sort of way that heartbearking agony is somewhat enjoyable, that is not to say that this is bad in way shape or form, but get ready to cry tears of happiness, sadness and anger all at the same time.
The only mark down I could possibly give Koe no Katachi is for characters, though the main characters are absolute perfection and truly mean that, their interactions and personalities are complex and faulty in a completely natural way, but I have to say I dislike some of the side characters namely Tomohiro, he's just the sort of the character that grinds on me, realistically it doesn't take away from the viewing experience though.
If you havent watched this yet GO WATCH IT!!!