In terms of gameplay, there is no gameplay, you basically just choose the order in which to see events, and gathering money/corruption to unlock new events, one per day
The trade off is controlled pacing and believable corruption, the dialogues are genuinely not bad for a hentai game, at the very least the heroine's actions make sense with her personality and predicament.
For that alone, I'd say you can play it in entirety and not just unlock gallery because you will miss out on her arc. Even the events to get money and points to unlock skills are calculated so you don't see the same events too often.
One complaint would be you wait too long to get to boning but once you do she is thrown into 2 gangbangs so the eventual tradeoff is not bad.
And there is nothing to after the game, no repeatable events, be nice to just go around fucking everyone but instead you get one cutscene per npc with a conclusion to each arc, I'm not sure if one is supposed to think of them as different endings or if they are all canon at the same time, see as you deem fit I guess.
The scenes themselves are drawn well and are quite arousing, none of them seem annoying too, surprisingly, it's not as if all the characters are gross perverts(besides the paid dating guy) as the heroine intentionally seduces them, so the author managed to make a corruption game without making guys around appear cruel, it is a breath of fresh air! Not to say I care all that much, but there is something sexy about the way this game does it.