I am near the end of act 1, and I gotta say, I love it! especially how each character's story line plays uniquely! and i really mean it!
Spoilers for some act 1 content!!!
My favorite storyline for how plausible it is was most especially Kit's, it feels the most realistic because the way it went from an actual average step-sibling bond into a relationship so sudden!
Kit's feelings feels more rushed while MC genuinely thinks it's moving a bit too fast, he loves his step sister as an actual sister, he made sure she wanted it, cheers her up when she started crying, and then when the time came, his morals actually came out, and showed that he doesn't want to go further, not to his own sister
I love that bit the most due to how real it felt. it made it feel like MC really does care.
Of course you also get proof here and there that he cares about the relationships of his, like Roxy at the pool, Alex during the shrine, being supportive of Nate (finds him cute too, which i agree in,)
And of course, our MC not just being all perfectly nice here and there, he does goofy shit that could get him in trouble, but does try to make up for it for the most part, or just to give into the pervertedness and get things done: Waking Emma from that entranced state to work, and helps her finish loading and unloading the truck, as well as cleaning her apartment for the sake of boobs. (respect.) Azalea which he pretty much fucks a stuck flower woman, and makes it up to her with a date of an actually pretty rad view.
And a lot more, I needa stop rambling, I took up like a whole hour to write what I love, and this isn't nearly enough, and this is just the FIRST act!
TL;DR: There's so much content I love about just the FIRST act's content! Especially how unique each character's storyline feels! and that the MC is a pretty wild bundle of surprise here and there! (This is of course, all in my opinion!)