I'm surprised how many people scored this badly but everyone is entitled to their opinion.
I've not read the source material but did watch the movie, which was not good. The drama is far superior.
This drama does follow some tropes but is overall good and clean. Whenever i just want to watch something that does not use too much brain power (other than reading subtitles) and will leave me feeling good, i rewatch Love O2O. I've rewatched atleast 4 times. And I don't even skip episodes! Also, i now have an appreciation for dramas with Yang Yang in them.