I feel like this type of game, combining AI chat with AI voice and adding them into some kind of 3D graphical environment, will be a popular thing in the near future. I look forward to seeing other games with a similar style. Not yandere/escape from room games, per se, but using the AI concept.
It wasn't too bad to set up. Playing the game was an interesting experience. I played for like 9 and a half hours until I ignored her and she decided to kill me, even as I tried to talk to her again. I couldn't figure out how to use the microphone, so I just typed in the chat. She was a bit "filtered" and overly AI-like at times, but mostly pretty realistic, as I'd expect from a current AI chatbot.
I ended up using about half my OpenAI $5 credit thing, but barely any of the Azur.e. Overall, a decent use of an evening. I would be curious to see, as someone suggested, if the developers could try talking to another AI chat developer about using their model.