I'm a fan of Brint since he checks a lot of boxes for me. As much as I enjoy dickish doms I apreciate him being more sweet & caring since he's the only legit male character you can have a relationship with. I personally enjoy his content with other characters, particularly the Elthara scenes & eventual pregnancy. I like the cuckquean aspect of it, especially as it's not written as being humiliating for the MC, he's just highly sexual as most people in this setting are & have his own sex life outside of being in a relationship with them. The same goes for the MC, but at the end of the day they're each other's "main" relationship. It suits his whole caring & friendly stud persona.
I do wish it was a option though to define your relationship, if it's important for you that he doesn't sleep around, etc. I would even go as far as having the option to chose to be monogamous yourself w/ the option of asking for your partner to do the same or to give them a hall pass. It would be more of a kink thing, like you could confess to not keeping the promise & get some special dom/sub scene depending on the dynamic you picked. So no dramatic & hurtful reactions or anything, more like "I knew you couldn't keep it in your pants" with some spanking or whatever.
The lore & setting are a mess. They tried to make this world more "friendly" than CoC1 yet there's still the same dynamic of sex after losing in combat. Then there's the whole temple prostitution thing where everyone is ok with it. That only works assuming essentially anything that isn't enthusiastic consent is cnc in this world, so for Kasyrra's mission of sluttifying the world to make sense the whole thing falls apart. Either everyone is already sex positive so what's the point or our character is constantly coming across rapists yet no one thinks anything of it so what different does it make to have a few more. She's barely doing anything either way. They could have worked with the infertile thing, that she essentially wants to make it so that no one can birth anything other than imps & the world's population would be stuck at whoever was alive during her realizing her plan.
There's something that is a bit of a personal pet peeve, but the magic is all over the place. Seemingly any random witch can change people's gentials and just in our party there's someone that can mind control others & turn them into tiny statues but absolutely no one can beat Kas. If we had any corruption content then magic could be directly tied to it, it would be both lore & gameplay feature. But they just carried over everything from the first game with the intent of "improving" them without giving it a second thought.