I was.... stunned. I've heard a lot of people talk about this movie, and the fact that it's a bit more intense than what you expect of a Korean movie. Even then, I didn't expect anything of this sort. Ofc it's still toned down a little, but it remains true to it's purpose and message.
Even if you aren't into BDSM, or anything of the sort, you still manage to keep some form of understanding for this movie. You even learn about the different dynamics, and what it's all about.
My favorite thing about the movie is the fact that it's not all about being horny, but mostly the social stigma around BDSM, especially when it's a woman dominating a man, and also the issues of some people with "fake" BDSM.
The directors and producers really managed to shed a good light on the community, even if I myself can't really say much about the representation, as I'm not personally a part of that community. It created understanding without dehumanizing those who are into BDSM.