I don't mind any of that at all. Obviously, some others do. Like I said, the control over what i do next is far, far more important to me than any loss of time. I guess its hard to put it into words, but when I feel like I've done something, within the context of the game, to progress things along and achieve or earn something sexy along the way, it feels so much better, and the payoff is that much moreso than if its just click click click next next next with a one directional VN. There's not a right or wrong as some people clearly prefer one and some the other, but I'm way over on the sandbox side.
If a game has X number of sex partners, and they all have a set number of possible scenes, I really, really want to choose who I see next and what I do with them. It makes the experience ten times better, I remember everything that's happened much better, and when I advance through more lewd outfits or sex scenes, it feels like I was the one who made it happen, rather than just watching from the sidelines. Almost the comparable difference between actually playing a mainstream non-adult game vs watching someone else play a game on Youtube.