I can understand why this show is a hit. She is the CEO and he is her secretary. The gender role reversal compared to Secretary Kim is amusingly handled. The man handles everything even beyond his job description so well that it is funny. From cooking to protecting. Plus Lee Jun Hyuk always looked sharp in a suit since City Hunter and Are you Human. Like a perfect wife and husband in one. Han Ji Min is good at giving life to her no nonsense CEO character. She is smart and not a frustrating person. She says things quickly and deals with issues decisively. She has a nice hairstyle that suits her.
The premise for them to be together is good. No messy in laws and she was also from a single parent household so she understands him and his daughter.
The various clients stories are quite interesting. Makes you appreciate what a headhunter has to do.
A few flaws. Some of the other characters storylines are a bit weak at times. Like the aunt raising her niece as her son and the young director. The office humor is strained sometimes as in most kdrama office shows they have to exaggerate to create excitement. This is a watchable show.