Rating Justification:
Story: 9/10 - Personally I thoroughly enjoyed this drama and its story. It was innovative and different, considering most alien-human love stories tend to explore and portray alien as abnormal and slightly on the creepy side creatures, which this drama did not do at all. It was also entertaining to see the life of an actress, and a difficult one at that, and it's glamour and downfalls.
Acting/Cast: 10/10 - The cast of this drama is possibly one of my favourite casts of all time. As I write this, I have had the pleasure of watching them act in various other dramas, and many of the actors/actresses still remain my favourite till this day. The interactions between characters, main and supporting, were always a delight to watch. They made the story all the more compelling and fascinating to watch.
Music: 10/10 - The music in this drama still moves me till this day. My Destiny, I Love you and Goodbye had me close to tears everytime!! Still one of the best soundtracks out there.
Rewatch Value: 8/10 - This criteria is a bit hard to judge for me, seeing as I am a person that doesn't enjoy rewatching things that much, so I have decided to judge this based on how much I predict I would enjoy it in case I did rewatch this drama. In my opinion it would go down in rating because I would probably judge the characters a little more, but it would definitely still be a high mark anyway.
Overall: 10/10 - This drama is definitely a classic for me. Besides the quick pace and never ending comical moments, I think it did a brilliant job on portraying not only the life of a superstar/actress but also a vulnerable and scared character. It would have been easy, in my opinion, to take Jun Ji Hyun's character too far, and either emphasising too much on her flaws or overdoing on her vulnerable moments. I think it was the perfect blend of fantasy, comedy and romance.