The game itself is good, but the 'reward for failing' mechanic that is so common in games like this really needs to stop being a thing. Doing well means you see fewer sex scenes: so why would you do well?
Why do well? To get further forward and be able to fail against new and different enemies.
Hey, I know it's annoying at times and that it should stop being a thing, but it's common for a simple reason: it works, and it can be plugged into practically any kind of game. Sorta like leveling systems.