Honestly, I almost feel that I had my expectations too high for this drama based off of reviews and such (..which hasn't been the first time unfortunately) however, if planning on watching this drama then watch it just for the fun of it without any expectations and I think you'll enjoy it more. Story wise, the generally concept is extremely fun especially since I always enjoy "supernatural" style concepts that try to mesh with romance - comedy is sure to ensue. However, I feel that it was dragged out a bit too long. There were a few points, especially in the beginning and end (for me at least) that just took FAR too long to get through. On that note, I think I had the most trouble with (dare I say it) Lee Seung Gi. I can't quite say if it was his acting, or just his character in general, but it was painful for me for the first 6 episodes to watch the so called "slowly-blossoming" romance between the two. I just wasn't feeling it at all, and I actually was more annoyed with it than anything. Thank the heavens that episode 7 saved my will to like his character. I had to give the casting a low score because, after all, he was a main character. On the up side, Shin Min Ah's acting and character were fabulous! She pulled off all the concepts extremely well - which made me oh-so overly attached, especially in the end half of the drama. The antagonists' did their job well (and were both gorgeous to look at~) and the side love story was just hilarious! They are one of the only reasons I would recommend someone watching this drama. The music, I was actually quite impressed with. Most of the time a specific song is used for certain moods (which they still did with obvious ones such as "Losing My Mind" and "Trap"), but in this drama they nicely made Lee Sun Hee's "Fox Rain" match moods that could pull heartstrings in many directions which I will always appreciate in a drama. While that will make me immediately grab the OST, I feel that this is only a one time watch. It's fun to see once, but after all the effort put in to get through the lulls I feel I wouldn't be able to make it through the drama as a whole again without preferring to skim to comedic relief.