Overall I found this to be Beautiful drama from beginning to end; best one I have seen this year. Great casting, good music, story was intriguing and well written. Once you started watching this drama, it's hard to stop. It is very interesting and each episode leaves you wanting more and more until the very end. There is no need to skip any episode because is not dragged or bored like most Korean dramas. I highly recommend everyone to watch it.
 I really liked the main couple, Lee Jong Suk and Suzy looked really cute together and their character were so adorable. They indeed delivered an outstanding performance. As for those who criticize Suzy, I have to tell you that I loved her character the most, her actions felt natural which makes her character more real and believable. I would love to see them working together again.  
Keep up the good work!