The movie animation is just amazing and the fights are beautiful, the problem is that the continous flashback kind of breakdown the pace of the movie, I guess it comes from adapting manga to movie but especially the last hour has almost a 35 minutes flashback that kind of make the ending anti climatic though some people found it touching, similarly those flashback with the character background tends to follow a repetitive pattern if you take into account what was already shows in previous seasons. I really like this movie but for that reason I dont think I would watch it twice. In comparison the ending and climax of season 2 and 3 were better paced.