This show just made me so happy! It's extremely rare to see such a gem in this genre, considering how mediocre most of the rom-com dramas in modern settings are. They took such a classic trope of body swapping and made it into such a funny, mature, and entertaining drama. Hats off to the entire production team for such a masterpiece!

What I loved:
The story - It's extremely funny, so many laugh-out-loud situations, and so many embarrassing moments with the body-swapping trope. Their reactions to the body swap are so realistic and logical and not over the top in any way that you immediately relate to their situation. The writing is intelligent. Characters are logical, and the dialogue and flow are very reasonable and rational.

The acting - Wow! I am blown away by the acting of both our leads. They are so good at playing both of their roles; before and after the switch, they never break character. After the switch, I can believe that Steven Zhang is a woman and Liang Jie is a man. Both Steven Zhang and Liang Jie are exceptional here, but I confess I could not take my eyes off of Steven Zhang in any of the scenes he was in. His posture, mannerisms, speech, walk, expressions - everything was so detailed and perfect. Liang Jie was also great, but Steven Zhang shines throughout this drama and is easily the most versatile actor in his age range. I've loved him in everything he's been in so far, but this role really puts the spotlight on him, and he is phenomenal here.

The Chemistry - Oof! These two have such great chemistry when in their own bodies and even when they swap. They look lovely as a couple, so comfortable and so convincing that they love and care for each other. I found the chemistry between the two to be so natural, without pretenses, and extremely believable. To top it off, this drama has a number of passionate kissing scenes and confession scenes that are very well done.

The relationships - Our main leads have such an enviable relationship. Their relationship was such a breath of fresh air. It was the most transparent relationship I have ever seen in any drama so far—no misunderstandings, no doubts, no unnecessary jealousy, just open communication about anything and everything. Any potential issues are immediately resolved by the leads reflecting and resolving the issue by talking to each other almost immediately. I haven't seen such a healthy and mature relationship in a long time in dramaland.
Additionally, the side relationships and supporting cast were also so positive, and there was really no bad guy or villain in this, which is always nice. I also liked that they didn't force a relationship between the supporting leads in the end. It was more realistic this way.

OST and BGM - I really like the OST here; the opening sung by Liang Jie and especially Steven Zhang's ending OST are really nice and are used really well. In addition, this show amplifies the funniest moments with some of the best over-dramatic background sound effects I have seen in shows of this kind. Honestly, the funny background music elevated the comedic situations to a whole new level.

What I didn't like:

One gripe I have with this show would be the too many product placement ads in the show. They really overdid this aspect of the show.
Another gripe I have is with the pacing of the penultimate and final episode. Not sure what exactly it was, but the pacing felt somehow off in the last two episodes.
Also, as was expected with such a story, the later episodes have a more serious feel to them, and it is noticeably less funny than the first half, but that's only because the first half was extremely, extremely funny.
Also, I see people disappointed with the ending, but I believe they delivered the best ending they could, considering body-swapping supernatural stories would not have passed through China's censorship board as it was.

Overall, this is going to be my new go-to rom-com drama. Thoroughly entertaining and worth multiple rewatches! 9.5/10