Overall it was a bitter sweet drama.
The first few episodes are filled with laughter, but towards the end it gets quite depressing....

The sotry line was great, it kept me interested through out the series, many unexpected plot twists.

The cast did a surperb job, espicialy JiSung- playing 7 different charcters.

The OST is perfect. I'm in love with 'auditory hallucination', it always makes me sad every time it comes on.

Comments (spoilers):
Idek how the female lead could forgive the male lead about her childhood, plus she also indirectly forgave his father. If I were her I don't think I would forgive them at all :((
The characters relationship is confusing so I googled a relationship chart, but one of them said Cha KiJoon is interested in RiJin, so I watched the series waiting for KiJoon to fall for her, but it didn't happen. So for the people who is looking at the same chart I did, don't have false hopes :)