Let me start out with that this is an insanely good game, just not very easy to get into. I think new updates are helping with that a lot though. I could ramble for quite a while about many of the positive things about this game, but instead of doing so, I'd just like to share some feedback from my personal experience (~30-40 hours maybe). Any criticism of my feedback is welcome :)
1. Replayability motivation is quite low. I know the game is not finished, but I think this could definitely help the game's longevity. Post-game content is non-existent as of yet, from my understanding, so you have to replay it. The motivations for this is you can unlock achievements and of course more lewd scenes, but this feels very slow and not very rewarding without an end goal. Which takes me to my suggestion. Have new scenes unlock when completing certain events with certain limitations, such as the achievements. An ultimate goal with like a really high number of achievement completed as a criteria could be a fun way to motivate replay. Or you could just add specific scenes after fulfilling the criteria for the achievements. Speaking of achievements. please, for the love of god, specify that you can still gather experience past level 1, just not USE them, for the level 1 achievements. In hindsight this is obvious, but confused me quite a bit. To backtrack a bit, this was just a simple suggestion from the top of my mind, I'm sure the dev's has something in mind as well, but more ideas never hurt.
2. I think the game has an insanely compelling collectivistic appeal, but it's REAAALLY hard to unlock all the scenes. You are basically looking for a needle in a haystack, or that's what it felt like to me when trying to unlock the last scenes of some characters. Therefore there needs to be some sort of hint or tool to help you know how to unlock a certain scene, in my opinion. It would make it so you don't feel like just fruitlessly searching for a scene. There could also be scenes only included in the ironman mode, maybe this is stupid, I don't know.
3. Now to the part where I list things I still am extremely clueless about and that I think need a bit more explanation in-game:
3.1 What is random events? Are they just rng-events and the % is the amount of those I have seen? I assume so, but I don't really know.
3.2 Are sex skills just ways to unlock new scenes?
3.3 Maybe explain stat loss a bit more, or make it more noticeable in-game, also maybe not as hurtful, although that may just be a skill issue I guess xd
4. Maybe have some character progression tabs for the companions so you know how to progress the relationships. This could be a solution for how to unlock different scenes as well.
This was all I had for the moment :) love the game
peace