This drama is my absolute favorite! I have caught myself going back to favorite episodes and scenes over a dozen times already. Ji Hyun Woo does a remarkable job as Kim Boong Do, it's very believable that he is a man in the future with the morals and abilities of someone from the Joseon era. Honestly, I think he does a better job than Micky Yoochun from Rooftop, whose character seems over the top at times. I would be sadly remiss if I didn't point out how adorable Yoo In Na is in this drama. There is this thing she does when she is frustrated or confused where she puffs out her cheeks, and I swear, it's one of the most adorable things I have ever seen. If you are looking for something that is light and fun with a really sweet romance, and not too much drama (at least not in the present day scenes) then you have to give this drama a shot! But, as much as I love this drama, even I can admit it is not without it's flaws. As with most time travel shows, there is definitely some holes in the way the travel works, especially when you get to the end. But if you can suspend disbelief long enough to just accept the fantasy of the show, you won't be sorry!