Although it is short, and therefore the story is a little to quick for my taste, it is a very funny show and you can easily watch all of them in a row. Important not to miss the alterante ending, which I prefered (but both endings are fine for me).
Characters' interactions are very interesting as well, they are caring for each other at first (some sort of "team spirit"), then starting to realize have body switch is an open door to new experiences, but it all very cute in the end.

The cast is really good in their acting, once they switched bodies they really can play the original character and it looks great. Definetly the best for me is Patrick's performance, with Xio CHi (the student) trapped in A Bu's body (the Sauna owner)

Kind warning, BL lovers might be a little disappointed by the show, as it is not the main plot. I originally started to watch it for this reason, but honestly I didn't mind at all the fact that it was not the center of the show.

In any case, I recommand highly to watch it, it won't take you long and you'll definetly laugh in front of it!