Overall excellent game, you are raising the bar for what can be done with this kind of engine. Its coming close to Illusions AI Shoujo in terms of interaction, though it is in dire need of a proof reader.
Surprisingly few glitches given all this game does, but I did run into some. When I manually activated the binders, talking to the kneeling girl simply went into the normal "do you have time?" conversation without the option to use her mouth.
The girls REALLY love those machines. So much so they ignore armbinders, chastity belts, or their owner forbidding self bondage to use them. Viv didnt even care that a W41T device was already occupied by Aemi when putting herself into it!
Zooming in a 3d event shares the mousewheel control with scrolling text. This conflict means you cant scroll text in a 3d event, and should have an alternate control.
The communications device is untapped potential for a status display, things an android owner would probably have anyway. This would include location, state, arousal level and objective like "Pathfinding to <device> to self bind", as well as time remaining in a binder.
Clothes and attachments should have a bit more permanency, especially things they supposedly cant remove like binders gags or especially the collars, since they dont interfere with any other action. They often finished cutscenes in entirely different outfits than I had on them going in.