I didn't get to spend much time in Boston so no advice there, but I can speak to the interview day! The interview itself was pretty conversational, but I think that can vary pretty widely based on your interviewer. It seems like the try to pair you with an interviewer who has similar interests and experiences which is awesome! All of the students and faculty that we interacted with were extremely friendly and open to answering questions honestly. I had a great time at my interview day and I think you will too 🙂