As may cdramas, useless scenes and a lot of product placement make it too long and sometimes boring or annoying, but the develpment of the love story is so good!
For the first time we witness the growing of a credible relationship. You never ask yourself why they are together or why they love each other.
They go from being strangers meeting by accident and disliking each other to love in such a natural way. Sport is the common ground, most of their dialogues are about this, they share passions and difficulties how a real boy and a real girl would in the same situation. Common experiences lead them to become friends and then lovers for a reason and not "just because" as many kdramas tell us.
Unlike many cdramas, the whole cast is so good and the only weak point (bedised the ones mentioned at the beginning of this rewiev) are close-ups on "action" scenes..a bad slow motion in front of a just as bad background.