Adam Wingard shows that he can switch things up and cater to a teen audience while effectively condensing a pretty epic, intricate tale into an enjoyable 100 minutes and he brings some squishy practical gore to an audience mostly raised on CGI.
This was awesome and I'm not even a teen. I've read the Manga and would love to see the same team take the story further (as there is plenty of material still to explore), but I'm guessing that the critical reaction has put paid to that. Fans of the Anime/Manga were always going to bitch, but it seems as if people are unable to accept that maybe a film just isn't meant for them. This is a total teen movie, it's ok to let it pass you by without vociferous online reaction bearded thirty-something dude.