Tl:dr you will like this movie of you like an artsy and pretentious movie that captures the bleak outlook of poor young people in 2000's suburban China.
This movie isn't for every, and even for the people it is meant for it cannot be considered entertaining in the classic meaning of the word. Nonetheless, it does an excellent job at capturing a very specific vibe of hopelessness. It is essentially about poor young people who should be benefiting from a period of strong economic growth but are somehow missing out.
The movie doesn't really have a real story, it is more a collection of scenes, the most notable being the bus station dance scene. This is also what is holding it back the most. I think the director could have captured the vibe equally well without completely foregoing a conventional storyline.