My first playthrough and my opinion:
First I was a little scared to know that the older sister spends the nights in her boyfriend's house but everything clears up and has a good story, then I'm shocked again that the little sister has two super sluts as friends but she is nice innocent girl and the story is going well, then I get scared again when I find out that the middle sister is being blackmailed for sending dirty selfies but again everything is resolved well, Alina is ok not exactly my fetish but a little fun added, I do not like Ana but accept that although the walkthrough says that nothing happens if you reject the truth is that you will lose important points especially with the older sister.
But what I most disliked was the mom, you find out that she is workaholic, working 20 hours a day, does not go to sleep at home, is entertained by reading erotic texts, the card of her work only says "Discret Inc" so is pretty obvious that she is in something no good, but based on the stories of the sisters I thought it would end well. I thought that she would be managing a escort agency or for the texts she reads that she would be running an erotic magazine / books / website but nop, she is a prostitute giving happy endings to dozens of men per day, EEEWWWWW !!!.
But hey, you just have to click on "This is not for me" and focus on the sisters, endure the horrible Ana for the sake of Liza and never think of the mother that you never see anyway because she is busy being a cumdumpster.