The students and faculty were all very nice and concerned with putting you at ease. The panel interview is a little stressful just b/c it's a new experience, but it wasn't bad at all. It was just like an individual interview in front of other people.
Read a book on health care issues, re-read applications, looked at feedback on this site.
What impressed you positively?
The campus and facilities.
What impressed you negatively?
Nothing really. The hospital food wasn't very good.
What did you wish you had known ahead of time?
It's a long long day with a lot of walking. You're divided into two groups, one tours in the morning and interviews in the afternoon and the other vice versa. Bring a snack if you get hungry easily. And the panel interview really isn't bad at all. All the interviewers have read your personal statement, but not the rest of your application.