I think that, so far, this is definitely the dev's most ambitious project so far. There's already allot of content in the game so far and they nailed the satisfying feel of progression good survival games have. They could easily slap in a final boss now and call it a day, and I'm sure most devs at this point probably would have to avoid abandoning it at the last minute from burnout, but it would feel a bit weird for the versions to go from 0.1 to 1.0 and, considering the doodles in the recent ci-en posts tease at a bit of Yaoi content, plus the fact you can make futas with the Build-A-Waifu tubes it is very much clear that they intend on sneaking a few extra kinks into the game before they wrap things up and move on to what's probably going to be a smaller project to give themselves a break after this one. Hell, I'd be shocked if we don't get more femdom scenes to balance things out since Yona has gotten so many h-scenes so far.
Than there's the fact that the dev is embracing modding with the workshop feature making it easier to make your own custom props into the game and god only knows if the dev is cooking up things that let you do more with the feature. I can only imagine what that is going to lead to when it comes to mods that use the feature as well as the ones that do the usual workarounds that let modders do things that the inevitable limitations of the feature would prevent them from doing.
My core gripe is mainly that the combat feels a bit stiff, especially at later boss fights who's projectiles are hard to avoid and hits like trucks like that of Hat or the new boss who's trying to do his best Neo Cortex impression. It's definitely doable, but not the best it could be.
Overall, this is definitely up there as far as far as quality porn games go as is and that's just making it all the more promising when it comes to what we can expect as development continues.