Having "completed" 0.3, I have some thoughts.
It's early days yet, as this is only the third release of this game and typically with adult games that last, they end up having a ton of releases. So I don't want to be overly critical at this stage. That said in future releases I hope the author gives more branches/choices in the game rather than powering ahead with the main narrative that emerged in 0.3.
With 0.3, the player more or less is railroaded into pushing the females characters into being extreme bimbos. You have to push the first female character, Stella, pretty far into bimbohood in order to advance Hang's plot. Hang herself you have to either push quite far into bimbohood or effectively drop her from coaching, which is anticlimactic for the player. Charlotte, once again, you have to keep pushing into the fetish to keep getting content.
I think the author should consider having more "moderate" approaches available, where yes you are getting sexual with these women but you're not turning them into exclusively sexual beings. Vanilla fans on adult game sites rarely speak up but they're oftentimes the majority of players, and more vanilla-esque players, I would think, desire to inspire sexual and personal confidence in women like Hang without necessarily turning them into semen demons who can't go 12 hours without a blowjob.
I'm not saying tone the game, I'm just saying expand the options. Keep the more extreme stuff for those who desire it but for those who only want "moderate" bimbos, let them have that as well.
I'm well aware branching paths can require a lot of coding and time sunk into the project so I don't expect anything like that to happen quickly, but I do think if you end up turning every character into the type of characters that emerge by the end of 0.3, the game risks alienating a lot of vanilla folks.