Of all the adult games I've played so far, this one took the longest to complete. I stopped keeping track after about 15 hours.
It really takes its time developing, with small increases in sexual acts with each character. That sounds common for adult games, but this one definitely stretched it. There is so much dialogue and plot and it didn't help that I wasn't interested in it. There isn't too many characters, so a lot of the dialogue is the MC thinking to himself.
The mother character plays a huge role in this game, or at least she gets a lot of screen time. Because of that, although I'm uninterested in her, I don't get to choose and still have to sit through a sex scene I didn't want, and there were a lot. And that can go for any character really, the game plays itself for the most part.
There is a small element of character bonding in this game, but I think it mostly affects the very ending. Characters didn't seem to act that different based on my choices, which made them feel meaningless. I was just choosing which sex scene to see pretty much.
The ending by the way, I have no idea how that came to be. I understand there are multiple endings, but regardless, it felt forced and rushed. It felt like a drastically different game from the beginning and almost comedic. The whole fantasy storyline felt like a side thing. How to obtain the other endings I have no clue. There is very little choice or interaction in this game, it's almost a kinetic novel.