This is the first review I'm writing though I have watched many dramas. So please don't mind if there are any mistakes.
1. Story : Overall storyline which revolves around body swapping is executed bery well. Body swapping scenes are absolutely hilarious. Main leads have great chemistry, their relationship development is not rushed and beautifully grown. Confession scene is one of the most mature and neat ones compared to what I've seen in other cdramas. Ending was appropriate.

2. Acting/ Cast: Steven has always been my favorite Chinese actor. His way of portraying character never fails to amuse me. He absolutely nailed this character along with female lead. Liang jie suited this role perfectly, her way of acting manly is little underappreciated but she really nailed her role. Both leads definitely brought justice to roles given.

3. Music : Something that goes really well with story line and helps in projecting emotions well.

Additional points : I personally want to see another drama with these actors, they really compliment and look good with each other. I hope many more cdramas can come up with these kind of fresh story. It is a must watch so go and watch it now.