1. i feel like the *concept* was interesting but the plot itself was kind of boring.
2. it felt rushed in a way the other korean bls didn't even though they were a similar length.
3. i don't have major complaints about the acting like other people seem to, nothing special but not notably bad.
4. i think what bothered me was the actual production though. the filming and coloring were super weird. some scenes (like the beach scene) the colors were way off, like they tried to color correct (maybe the sky was gray when they filmed and wanted to make it blue) but went too far, and it was kind of distracting. some scenes were poorly lit, overexposed or underexposed, oversaturated or undersaturated (and not just when it makes sense like when he's experiencing a color rush). it just looked like it was filmed by an amateur. i know that doesn't matter to a lot of people, but it really effected my experience watching the show, it was hard to take seriously because it looked low quality
5. i read the first 5 chapters of the book before i watched it and felt like the characters were bland compared to how they were introduced, especially yeonwoo.