Extremely hectic schedule, 7 interviews (30 minutes, each) with renowned Faculty/Scientists. Its a good idea to read professional interests of interviewers prior to the interview day if possible so as to have interesting scientific conversations with them. Most interviewers were laid-back realizing candidates might be nervous, and were kind enough to provide a decent introduction of their areas of interest. It's always a good idea to have a couple questions ready per interviewer in advance.

They flew me out for an on-campus visit. The interview(s) consisted of casual meetings with most of the faculty and some time spent with other graduate students. I'm not sure if it was valuable to put candidates through a gauntlet-style round of 30-minute conversations covering many of the same topics when these could have been done as small group meetings, affording the time for more substantive discussions and experience on campus.