The Sweet (LIKES):
Cinematography, locations, colour pallet, all visually pleasing.
The nostalgia with the VCR tapes, camcorder, etc. was fun.
Well chosen cast. Good chemistry between Kim Too Jung, Byeon Woo Seok and Park Jung Woo, as the three main leads. Acting was okay.
Production: Finally a South Korean movie that uses a film stabilizer for the most part, (still some shaky moments though)!
I liked the ending, but

The Bitter (DISLIKES):
WRITING: Wish this was a series instead of a movie, so that there was more back story for the main characters, more character growth and better impact of certain moments in the story. Too many loopholes in the plot, unexplained/unresolved moments. This was the usual teen drama. Timing of showing the leads as high school, university and adults, was off and very abrupt. Script was lacking too.

OVERALL:
I didn’t mind the ending, but it seemed a cheap way to get a reaction from the viewers, due to the under developed story. It’s an easy watch, with not too much angst. I recommend it for the audience it was made for (teens). And I would watch it again.