Though i did not expect much from this drama but it really got me hooked from the very first episode. I would not say that it doesn't not have any flaw but you will enjoy the drama till the end.
Story: I gave this one 8.5 because it isn't as groundbreaking as initially seems. It has fair amount of cliches. so, why i am giving this one 8.5. Because the way they executed the story. It was done wonderfully. I loved it romantic moments as well as its intense parts.
Acting:It has a great cast. The acting was superb especially i have to mention Seo Kang Joons acting. His acting was remarkable. I don't think i have ever root for a robot.
Music: It wasn't enough to give the OST 10 /10. The music was heartwarming slightly sad. It was so good and matches the scenes perfectly.
Overall I absolutely loved are you human too. Though it is kind of dragged towards the end, its has its moment. In the end, I think the great elements of this drama outweighs all of the negatives.