I absolutely enjoy this game, the writing and humor is well thought out and the reasoning behind WHY you were bullied is surprisingly understandable. It takes a few odd turns, but most often those plot twists help progress the story in a good direction. That being said, I have only three real criticisms, all of which are related to Sky / Klara.
Note these are personal preferences and not a criticism of people who enjoy those genres.
(Potential Spoilers, OBVIOUSLY, so continue reading at your own risk)
1. How you define the relationship for Klara and Sky. With no real contectual dialog changes, it can break emersion when people are 'shocked' you are having sex with your roomate. All of the consequences / reactions to continuing down the 'roommate' and 'landlord' route are very ovbiously written as though you are related to Klara and Sky. This annoyed me and I personally just gave up and set them as Sister / Mother considering everyone treated them as relatives regardless.
2. Sex scenes that you have no agency to decide whether or not you will participate. Even if these mandatory sex scenes are contained within flashbacks, not having the power to choose slightly annoyed me. In both cases they dramatically change the relationship dynamic, so I do understand to some extent. I suppose stems from one of the mandatory sex scenes being incest related. Though the removal of agency for in the other still irked me.
3. Speaking of a mandatory sex scenes, having a second incest sex scene be required if you wish to FULLY explore a different character's route seems odd to me. Anyone who wishes to fully explore Gwen's route must have sex on the beach with their sister. This feels bad for those who wish to experience Gwen's story but are not fond of incest. I would much rather Sky's beach date to be allowed the choice between platonic / sexual to allow Gwen's route to not force incest, if desired.
I understand that all three of the above criticisms are nitpicking, with the first one being nearly impossible to fix (requiring developing large amounts of additional dialog to differentiate between sister / roommate). The game is well thought out and I am thoroughly looking forward to Chapter 2!