This game is kinda overrated imo. I mean it's a good game, but I don't think it stands out very much from other 3d render hentai games, hell it even largely uses the same assets you see in the rest and everything.
Worst thing about it besides how drawn out it can get at parts (you often go kinda long without getting any sex scenes in this) is that it's also using that stupid episode release model that just doesn't work well for games in the first place, no matter how you try to spin it. Nobody wants to play ep 1 through 10 from separate executables, it's a convoluted mess to release like that, everyone would rather take a whole game than that kind of mess; how anyone could think it's a good idea is beyond me.
It seems to be working out for this guy for some mysterious reason, but it's an edge case in that regard. Most games that try to go the episodic route just plain fail.