First of all, the poster is so misleading. You might think "Oh, another drama with a love triangle" but that is not all the case. Also, you might think you're about to watch one of the funniest dramas ever. I agree, there are some funny moments, mostly because Jung Kyung-ho is so good in these kind of roles, other than that, is a very serious drama.

The most interesting part of this is finding out the truth about the murder. The last 2 episodes had a lot of suspense! I thought the change of personality after a heart transplant is quite over the top but after doing a bit of research, it is true, so interesting.

I'm one of those people who didn't see at all the chemistry between Jung Kyung-ho and Kim So-yeon, at one point I didn't even care if they were going to end up together or not.

The music worked very well.

I'm not saying I regret watching it, I'm glad I gave it a shot, but there were so many moments which could be shortened. 10-12 episodes would've been enough, that's why my rewatch value is 4.