This is an amazing story. I wouldn't suggest any one to watch it if they do not want to cry, because trust me i held out till the 5th episode and i was crying till the end. Cast play their characters wonderfully and i really believed that The main character really had this disease. It is a realistic plot line considering the the time change from when the real person actually lived. so as a warning you will cry so grab your tissues and pain pills because you will need them for you tears and head ache from crying so much.
By the way Re-watch is low because i don't tend to watch shows that make me cry twice. Nothing against the show.