This was both very good and intensely annoying. I loved the premise. I liked both leads, once they acquired depth beyond his snootiness, her whiny clinginess and their two different kinds of bad hair. I enjoyed the ghost stories, several of which had really touching moments. The second couple grew on me (especially the second male lead when he took down those guys in the alley! oof), the secretary and the uncle were great, the apartment kids were adorable, and the whole thing had me totally gripped for the first half.

But: as others have said, it lagged after that. The amnesia was irritating. The romance felt...constipated: those frozen unmoving kisses, and too many moments where they should have at least hugged passionately, and didn't. The kidnap resolution was a damp squib (and Evil Twin's face was supremely irritating); the stuck-on side-plot with the female lead suddenly meeting Other Ghost-Seeing Guy with his weird brochure did nothing for me, and the finale was okay, but felt disappointingly passionless. Still good overall, but I'm left wishing the writers had made different choices. Curious to see what their other dramas are like.