I see people are having disagreements and etc. I'll put my coin as a lurker, on the table. And be very honest and fair as possible. Totally impartial.
Design: Wonderful and simplistic
Graphics: Pretty good for a h-game
Gameplay: Love it and decent metroidvania style
H-Scenes: Impactless and very safe
Fetishes: None, except "Monsters" amd "Tentacles" as tags and mild guro for the dead enemy bodies in "Pods"
Essentially. This is more of a game then an H-Game. My personal opinion, is that he drops making any H-Content from now on. He doesn't seem to have any unique taste or fetish that applies to the theme/style of the product he sells. So it mostly turns on people with super tame interests. And tame porn is essentially boring and lacks personality. This again, is just my opinion. And i've been playing H-Games for many years now. And it has truly crashed down to "Dumb Tame" levels where RPGMaker style is mostly focused at and personality/identity of a product is lost.
As for his selling point. Grimhelm has some mad skills in making things, Game-y products and seems to like Metroidvania style games, or rather more RPG/Action oriented ones. Which is nice, all things considering. And he has to sell his product somehow. And staying on a product where he feels like he's done his and wants to move on, is understandable. Let's be honest. There was NOTHING to gain from Boss Scenes as they would be very tame, as again i said before. So don't expect anything there and quit asking for it. I would love it myself that he'd TOTALLY finish it. Sure. But from the point of time and money spent on his project, i'd say it's very finished and he should find something else to do and perhaps enjoy it.
This is simply my perspective and opinion.