I didn't regret watching this even if it meant backlogs for me cause the story is interesting. Didn't expect to actually appreciate this drama even if the setting is mostly revolving around police station and bus stop. It just proves to us that a drama doesn't need veteran artists or grand settings, props etc for it to be good. I believe they didn't spend much on this drama.
For the acting, everyone did well.
For the ost, idk but having a English ost on a Chinese drama is very weird. I mean, it's good as ending or beginning song but weird as bgm. Ahhaha.
I also like how they include side stories of the passengers without overdoing it.
Characters are realistic and most of the time logical.
No love triangle or whatnot