I didnt had many expectations from this due to all the negative comments i have seen, but i really liked this.
I actually havent watch any other drama of the main leads (crazy i know) so i went into this blind, i didnt know if i would like the actors (i cant watch a kdrama if i find the actors bad) but i knew that both of them have many fans, so i started it and i can tell you i fell in love with both of them and i look forward for their next projects.
I think the key in this drama is the characters and not the plot! Actually the plot was quite odd and some things didnt make much sense but the strong characters and their development was so great that i loved it. So if you are looking for a plot driven drama this isnt for you. The chemistry between the two leads was breathtaking and i would love to see them play together again some day, even tho i think Dae Hyun feelings for Saet Byul came kinda out of nowhere, or at least he moved on quite fast, at least they didnt rush into a relationship (i liked that it was a slow burn).
The ending was good but i wish we had seen more information about the future for some side characters, actually some of them just disappear at the last couple of episodes, for example Ji Wook, we saw his goodbye to Saet Byul but i think at the end they could have told us what happened to him.

Anyway the show is so much better than people say (at least for me) It has some really good moments, very funny moments, cute too.

Give it a try!