FIRSTLY, the description given about this drama in the synopsis is doing the drama BAD. The drama has more to it than just that! Let me start by saying this is not gonna be one of the dramas you watch and regret wasting your time. I started this drama mainly because I'm into Noona Romances. This drama brings out a lot of emotions both happy and sad ones, and also gave me a new insight in life as well. The drama is correctly paced and the most realistic drama I've ever come across in my watching of K-drama's. Many a times when I watch dramas based on life I often wonder "how can this be possible?" or "there's no way this can happen in real life!" even though they aren't fiction or fantasy. This drama left no place for doubts like that and it potrays a very mature and strong relationship between the leads.

STORY: The overall story is quite wonderful! but kdramas always have a plot twist which you never expect. I personally think this twist wasn't really necessary as the drama by itself was going on really well!

ACTING: I couldn't have asked for a better casting than this, both the actor's brought out the life in their characters exceptionally well. For all of you saying the casting is a wrong decision, I would say y'all are blind! SHK and PBG's expressions as well as their acting couldn't have been better!

OST: The OST was a blessing to the ears! Right from when they were in Cuba to the ending . The music coordinated very well with the scenes! and enhanced the ambiance of the situation as well.

The only time when I was disappointed was when episode 13 ended. After that it was kinda unexpected and when everything came back to track the happiness was very short lived. I wasn't able to experience the joy of the drama I felt all along. It would have been better if there was 1 more episode added to it after things got back on track.
But overall this drama is ONE OF THE BEST dramas I'VE seen!
I WOULD STRONGLY RECCOMNED IT!! :)