My opinion of this drama came and went like waves on the shore. One moment I'm invested, interested, and laughing at the jokes, the next I'm barely paying attention due to how little I care. It'll be difficult to explain this without spoilers, but I'll try anyway. Of course, I will discuss both the good and the bad for a fair analysis.

The strongest part of this drama, in my opinion, is the relationship between the two main characters. Although not necessarily established in the strongest way, and perhaps built up too quickly, their intense friendship is intoxicating, and it brings a smile to my face whenever the two are on screen together. They help each other and support each other, and their personalities collide to create energetic conversations and playful bickering. It's simply fantastic, and shows why the drama is good enough to be worth watching.

Now, while I'm not a huge fan of the overarching plot of the show, I can say I loved most of the parts with the second lead and his circle of friends and loved ones. A small bit of this is due to my obsession with the gender-bender reincarnation trope, but a majority is due to the well written conflicts and characters and the lead's own amazing personality, carried by strong acting. The second lead, Han Gi Tak, is strong-minded, passionate, and determined, and just a great character over all. If the show was just about him, I probably would have rated it much higher.

Another great thing about this show is the acting. It's done very well, with intense and complicated emotions being effectively expressed without the need for extensive dialogue. Not only does it make believable the supernatural part of the show, it gives the show emotional weight and the feeling of true relationships (most of the time). And on that note, I must express my more negative feelings about the drama.

I did not care about the main lead or his troubles. When we are introduced to Kim Young Soo, he is a work-aholic, obsessed with his job and neglectful of his wife. Not doing a great job of establishing empathy for the character. He has a good relationship with his daughter, and does love his family, but other than that his personality is pretty weak. This is a bit of a spoiler, but once he's reincarnated, his overworking nature effectively disappears as well, and he's left with pretty much no personality whatsoever. Besides the occasional quirkiness played off as comedy, he's an entirely bland and unrealistically perfect person that I just can't get invested in.

Another thing to dislike about Kim Young Soo's story line is his romance arc. It's just too confusing! I don't know what to root for! I won't say too much and spoil anything, but let's just say that his love interest's feelings are forever uncertain and endlessly being called into question. There are mountains of contradictions, further complicated by a repeating cycle of reveals and misunderstandings. Besides the occasional flashes of easy conversation that we might expect, there's basically no chemistry between the romantic leads, and their interactions feel awkward and cautious. Even our favorite Han Gi Tak is not always enough to save a scene with the two of them.

It follows naturally that a disinterest in the characters will cause a disinterest in the story, and that's exactly what happened with Kim Young Soo's plot. No matter what threat or conflict occurred, I just couldn't bring myself to care. Perhaps the most I ever cared was when something went down with the daughter, because that was the strongest relationship shown before Kim Young Soo's death and the emotion of children can be a very powerful thing. Besides that, I just couldn't connect with the characters, and therefor couldn't connect with the plot line either. Except when Han Gi Tak is involved. We like Han Gi Tak. I think you're starting to see a pattern here.

While the emotions in this drama were present, and I almost shed some tears here and there, SO much more could have been done. Of course, a lot was riding on my investment in the characters, which was a problem for Kim Young Soo, but even in Han Gi Tak's case the grief just wasn't really explored. If you look at the drama "Hi Bye, Mama!" which has a very similar premise, I cried more in that show than all movies I've watched since, combined! Parental sadness, loved-one sadness, children sadness, all things that done well could have torn me apart inside and it just didn't happen.

One last thing I'll say: If you're looking for a fun gender-bender, go watch "Mr. Queen." While the trope is there, and is used for comedy on occasion, it's not a focal point of the series nor has exceptionally profound impacts on the story. The hope of this is what brought me to the show and in some cases motivated me to finish it, and so I'm a little disappointed in that regard. That said, Han Gi Tak is still a fantastic character, gender-bender or no, and so I'm glad to have watched it if only to experience his rowdy affection.

That was a very long and complicated review, but I'll try to conclude anyway: Sometimes it's pretty good, and sometimes it's kinda boring. I don't know how to put it any other way. In it's best moments it's fun and interesting but won't change your life, and in it's worst moments it's bit boring and dull but won't have you sending death threats to the screenwriters. It dips above and below the line of "worth watching" again and again and it's difficult for me to decide whether to recommend it. I suppose I'll say this:

Try it out, maybe an episode or two, but if you don't like the way things are going don't expect it to get better. It doesn't. Sometimes it gets worse. Also I'm not going to rewatch this, not in a million years. So there's that.