Everything. They have a receiving line of current medical students who shake your hand as you enter the board room. That really impressed me. Everyone seemed so happy and nice. The director of admissions stated that most students who make it to the interview have a good chance of being accepted or at least waitlisted. They don't commonly reject people outright post-interview. The facilities seem great and I would love to live in that neighborhood of philadelphia.
What impressed you negatively?
The class size is enormous: 220. Its somewhat balanced by the fact that you do a lot of your work in small groups, though. Also, my faculty interviewer was very nice, but ended the interview very abruptly after I had asked him a question. It was a bit odd.
What did you wish you had known ahead of time?
How casual the student interview is. The students literally come straight from class and just chat with you for a few minutes. Its hardly an interview.