I have to say - the oldies are the best. Really enjoyable thriller/romcom that falls into the classic Kdrama format that we all fell in love with. Great cast and quite possibly the most enjoyable Park Min Young drama I've watched - even more than Secretary Kim as she's just so real and adorable. Ji Chang Wook is great in his role as 'Healer'.
Took me a while to warm to Yoo Ji Ta's character (Kim Moon Ho) but you learn what he all about after a couple of episodes. Kim Mi Kyung is brilliant as always and plays a super hacker who supports Healer.

Some of the production is not as good as what we see in today's dramas - eg everyone is so evenly lit and the soundtrack is good to average - but don't let it put you off. This is a great drama and very satisfying to watch. Also did I mention how cute PMY is in this?..