Well, I watched Ep 9, and I'm now dropping this. I will tell you why: The writing is abysmal. You can FEEL this is based on a trashy fanfic that's only popular because of the hotness, the toxicity, the tension etc. I didn't read the novel, but it seems to me they are doing a better job in the series and are trying hard not to make it too stupid and too cliche. Unfortunately, they failed. Let me go into detail: the characters.
Kinn: His real persona seems to be a nice guy, who doesn't really want to be in the mafia. When he was out in the woods, he felt great, and didn't want to return. We got to see a very child-like, fun and adventurous side of him. So what now? What does he do? Is he planning for the future? Is he trying to escape his family? Is he trying to lead the family business in another direction? Is he doing anything? Yes, he is "acting" as the cold/bad mafia boss he is supposed to be. He rules by fear without being very convincing. What else is he up to? His love life is apparantly very important, but also pretty messy. That's what he is doing. Thinking about love, and who he can trust.
Porsche: Apparantly he is a nice guy too. He was working as a bartender. We got a sappy story with his uncle gambling away the money. You would think the family is poor, but their house says differently. Now he works for the mafia. He has to kill people. Gruesome! Does it bother him? Yes, a little bit and for a short time. What is he up to now? His love life. I would expect him to think about the future, to have nightmares, to wonder in what kind of mess he finds himself and what bad things will happen next, but nope. He is busy dancing in his underwear and flirting with the mafia boss. Guys, come on!
Then Vegas/Pete: Everyone on the internet is gasping if Vegas appears on the screen. Yeah, great. I'm getting wet too. Not really. What makes this character special? What? He seems to have sadistic tendencies. Is he smart? A mastermind who pulls the strings in the background? Nope. If his manipulative games are working, then only because everyone around him is dumb. And Pete? Well, he is the comic relief of the show. Great pair!
Then our 3rd beloved couple: Kim (the next as*hole) and Porchay. Well ... Kim plays guitar. You know, because it's not a BL without a guitar player or a soccer player. Enough said.
I don't want to go deeper into all this mess: Like making EVERYONE gay and most of them behaving like a f*ggot. You would expect gay guys in the mafia being more hardcore. Tankhun is too silly, and gets too much screen time. The character is not believable. Kinn's friends neither.
If you go for such a story: make it dark, make it intense, make it believable, play ugly mindgames, make me scream and clench my teeth from excitement! But no. Lets drink and dance and have some sex, while showing occasionally some torture and blood, before skipping to some sappy dialogue where Kinn's or Porsche's friends gives some deep love advice as if there is nothing more important than having a sincere love life, while being in the mafia. And if there is some time left, make everything more gay and more stupid.
Come on! That's all you have got? Sad enough.
I will still give it a 7, because of the good performance and charms of the actors. They somehow manage to breath some life into those boring and brain dead characters. The filming (especially the love scenes) is pretty good, and overall you can see the effort and how hard the team worked. Just fire those stupid writers or hire some good ones. With such actors, such a production team, you could aim for the sky. Instead they give us a silly rom-com with mafia background without exploring it much further. Just do it for god's sake! Be brave! Be edgy! Be revolutionary. Nope. Play it safe. Show us some sex, so people will keep watching and talking about it. No offense to the sex scenes. They are without a doubt the highlight of this brainless series.

EDIT: I watched until Ep 13, though I skipped many parts. I'm shocked, really, and I will lower my rating. The VegasPete story was soooo strange. Is this BDSM? No. What is it then? It was cruel, and then it was cheesy, and everything happened too fast. I'm baffled how bad this relationship was presented. Meanwhile KinnPorsche became also such a cheesy couple with lots of scenes nobody needed. This went downhill BADLY. Stupid people, shallow emotions, unnecessary violence and sex scenes that don't do anything for the story. But you know, 50 Shades Of Grey was apparantly also popular. I'm out here. Bad. Really bad.