I don't think I fully understood this movie. The topic was very deep and I think that Goodbye Summer managed to show how a person with a terminal illness would feel but for me the movie seemed rather bland.
The characters weren't that interesting to be honest but the acting was nice. The dialogues sometimes felt flat and too deep and philosophical for normal high schoolers.
Though I must say that I really liked the cinematography of this movie, that was really amazing especially the shots of nature were great.