I am a huge fan of the manga (re-read it many, many, MANY times) and I was aware it would be hard to adapt the story into a single movie (a series would have been better), so I didn't have huge expectations.

The movie is nice, a bit messy maybe and lacks a bit of dialogue (like many Japanese movies/shows, sure, but this one would have probably benefited from it) and thought-process on how the characters reach certain conclusions/feelings. If you read the manga/watch the anime, it's easier to digest, otherwise it's a bit of a rushed movie.

The cast is very good, maybe only the female lead I found a little... not so great among the rest of the cast. Not for her acting skills, because no one in the movie really shines (except maybe the male lead and the female lead's best friend) but I feel like another actress would have fit the role better. Not what I imagined for Erika at all tbh. Kento Yamazaki, on the other hand, is perfect for the role, nothing to say about that choice.

One thing I can wholly praise is the soundtrack, cause there are many songs that are download-worthy and replay-until-you-vomit-worthy.

All in all, the movie is not too bad and I rewatched it 2-3 times since it came out. I'm still hoping for a live-action series though.