I actually saw this movie during a flight to Shanghai and really enjoyed it. Award winning Chinese actress/singer Zhao Wei makes her directorial debut in "So Young" and does a fine job. Most of the actors are newcomers, which I found refreshing. Lead female Yang Zishan's performance was great and I expect she will be a successful working actress for years to come.
I won't write any spoilers or plot lines, but only say that this film simply deals with life - friendships, relationships, love, loss, the decisions we make in our youth and how those decisions shape our adult lives. These things are universal; one need not be Chinese to enjoy this picture. As an American, I found it to be wonderful.