I have been keeping this drama on hold , not knowing whether i should watch it and I just finished watching it and boy this drama is absolutely great and is quite worth watching <3 <3 . And the drama is not great just because Ji- Chang Wook's presence but there are really other adorable characters.( the main leads are really great ) There are moments that will make you laugh.
So I would just say one thing .. to all those who are doubting. Just go and watch. You will not regret it. I am sure.