Was really excited upon reading about the concept of the game, but as many say here, this game has little to no "gameplay". There are only two types of customers, and they both provide a reskin of the same (two) animations for "normal" sex (plus a couple animations for special situations). Beyond that, the money you can make relative to costs is so imbalanced that you should have money for everything by the first or second day.
Main thing I wanted to say was that I figured out a way to mute the (very annoying) music. If you go into the sound/bgm folder and move or delete the audio files you can at least listen to your own music while playing this "game".
