I would agree with what wisneuro said about accommodations. I would make additional accommodations at a hotel if you want to stay longer than 1-2 nights, such as to get a better understanding of what life may be like living in that city (you may be there for the next 3-6 years, so it's helpful to know if you will like it). Also, it may be helpful to consider how you are when you're anxious. For me personally, before a high stakes event (e.g., defending prospectus, attending internship interviews), I have found it helpful for my anxiety to be alone without the pressure of needing to be a polite guest. It also allows me to spend time reviewing my materials, researching more about the program and town, practicing my responses to possible questions, and doing some self-care (e.g., at home facial, bubble bath, going to bed early, having a nice dinner). If you do end up staying with a host, it may be helpful to communicate in advance that you would likely need a little bit of time the night before to prepare (if this is something you feel you will need). Best of luck on the interview!! Let me know if there is anything I can do to help! 🙂