The interview was great! There were about 11-12 people and the interview was from 8am-1:30ish. All you need is your ID and you check in with security and they tell you where to go from there. The interview (which was 1on1) was really laid back. Mine was purely conversational and lasted an hour and 15 minutes, even though it was only supposed to be 30 minutes. I had a great time with the person who interviewed me. They had to pull me away to talk to an admissions officer which you also have to talk to, but it’s more to double check that everything like pre-reqs are in order and for you to ask any additional questions you have. Overall, it was super chill and I wouldn’t worry about anything except for how you are getting there. I took the subway and walked, others took a taxi or uber but some people were late because of traffic. So plan on giving yourself enough time to get there.
Edit: The interview was also open file!