The sex scenes are a bit dated and over pretty quickly, but this is pretty good all in all. The dialogue is on the high end for one of these things. Characters generally talk like actual believable people. They jump to sucking your dick a bit faster than actual people, but hey that's why we're here. Might be a bit fast for the slow burn enjoyers, but nothing you can't suspend your disbelief for. The sister is a huge slut, but still acts like a sister. I think they did a good job of balancing her more grounded sister behavior with the more silly porn nonsense aspects of her character. Complaints of NTR are, I believe, overblown. I hate ntr, but none of what happened in this game bothered me. Yes, your sister has sex with someone else in front of you, but well, she's your sister not your girlfriend. As your relationship evolves you can decide you want her for yourself, but at the beginning you aren't into each other and I don't really see it as NTR. The game treats its characters with an unusual amount of respect. None of the girls needs your magic dick just because you're the protagonist (ok, one does, but she's crazy). If you don't pursue them, they will go off and do their own thing and have their own sex life and generally be fine without you. Personally I find that very refreshing.