Honestly, I deeply liked it and the fact that it's so short really makes it perfect for re-watching it over and over.
I would be lying if I said that I wouldn't want this to be longer, and also if I said that the ending wasn't a little rushed (that's why I won't give it a 10); but considering that it is a korean bl, and we all know who rushed they can be, it really isn't bad.
Maybe what I liked the most was the cast, I really think every actor suited perfectly their role, I almost thought they weren't acting at all and they were telling us their real story... Amazing!!!