Arrived promptly at 8:20AM at the Admissions Office. Waited a bit with other interviewees; no coffee or doughnuts provided, so I was glad that I'd already eaten at the hotel. Welcomed by staff, given the names of those who would be interviewing us (one morning interview, one afternoon) and the times. Then we were escorted to our morning interview so we wouldn't get lost. Reassembled at noon for a tour, led by a friendly student (unaffiliated with the Admissions Office) who showed us the facilities and answered any and all questions. Returned to Admissions Office for lunch (they provided it) and talked with the Assoc. Dean of Admissions, the staff coordinator, and the tour guide over the meal. Were escorted to afternoon interview, after which we were free to leave.
My first interview was with a non-teaching faculty member, and he seemed rather rushed; it was a clinic day for him, and we were interrupted once by someone wanting him to look at films (which he went off and did, returning in about five minutes). The entire interview only took about 20 minutes. The second interview was with the vice-chair of the admissions committee, who also teaches at the school. He was much more relaxed and willing to discuss things fully; the interview lasted about 50 minutes. I felt much more comfortable about this interview, which is the one that counted more, since he is actually on the committee and won't just be making a written recommendation for the file.