OVERALL : Nice summer drama, fresh and entertaining with very little thinking involved.

PART ONE Positive points(Spoiler Free):

1- The Plot was enjoyable with an original start that makes me curious.
2- The comedy worked, it made the drama entertaining.
3- The romance was light and fresh, and made me want to keep watching even though I knew this was not going to be a serious drama.
4- The last episode even made me cry, mostly because I grew attached to the characters and didn't want to leave them.


PART TWO : Negative points (Minor Spoilers to explain my points)

1 - They chose to play the good twin/evil twin card to avoid really going into the subject of :
a- Robot /human romance (like: is sex even happening? Do we just assume she's asexual? Does she really want to be with someone that will never physically desire her?)
b- the change society would undergo if an AI truly tried to obtain human rights or manage a human workteam (let alone a company).

2 - They Resolved every possible crisis by way of Deus Ex Machina (solutions that come from nowhere and seem a little bit like cheating), but it's a sci-fi Kdrama so that's a given.
3- The robotics genius was reduced to simply being a sad and controlling mother after 2 episodes. Her brilland brain left the boat once the plot was introduced. Then she became unsufferable (to me at least)