It's a classic, action, propaganda Chinese, well stocked film.
But I watched it with pleasure. I didn't expect nothing more then total destruction in the war with nasty aliens, apocalyptic veduta of Shanghai, extermination of human being, sacrifice and death of friends.
Unexpectedly I was suprised by little, melancholic and sad romance that was written like a poem. I like this elegiac vibe and memories of love, because it shows a bit humanity during the end of the world.

Despite of stereotypes and simple plot you watch this smoothly. Of course it isn'n the great film, but you may enjoy some star battles or love of boy and woman with military uniform.