Almost everything great that can be said about this drama has been said by other reviewers so I'm not sure what else I can say.

This is just a masterpiece. From the story, acting and even the soundtrack. Man..Prologue by Uru has gotta' be one of the most fitting songs ever for a JDrama.

The ending..the very last scene of the final episode. I've probably watched it more than 20 times alone. That cinematography....it's just astounding. Even if you are just going to watch it for that very last scene, please do.