Did it live up to the hype that it got before airing? The answer is Yes and No, for obvious reasons.
The story itself was decent. It had several questioning moments that didn't make sense but overall it was alright.
The actors and their acting skills are what made this show shine. From the main couple to the side characters, the side couples everything was terrific. Even though there were obvious story holes for particular couples( VegasPete, KimChay), at the end of the day it was somewhat easy to understand what was going on.
The character development was done perfectly and I really liked that. For certain parts, it felt like they rushed some things but overall it was interesting and intense. The soundtrack was amazing.

There are moments where the characters( the couples) enjoy the abuse, the violence, the torture, and the toxicity of the other partner. Speaking of which, the love between the couples is toxic af. I totally understand where that is coming from (from past trauma), but promoting it is not good. It fits the story but it's not something that is healthy. Keep it in mind because it's a story after all, but some will find it disturbing.

Is it the best BL out there? No, but it's not the worst. Many BLs these days are coming strong and this one was no exception, but is definitely not the best. Give it a try, it is definitely worth a watch if you enjoy these kinds of topics.