@hmkerstetter
Just wanted to mention I got accepted! Interviewed late Tuesday night and heard back today (Thursday) morning. I can concur that you should definitely read over your statement and make sure you know why you want to attend UPenn. It was relaxed but definitely still formal. Good luck!
@mkern2
I'm not sure if this was with you as well, but the whole interview I was almost under the impression that I was already accepted. My interviewer kept saying "When you get accepted", "When the field office calls you". We were brainstorming good field locations in Philly that would be a good fit. At the end of the interview she said I had a glowing package and she hopes to see me in the fall. It was a lovely experience, everyone was really nice, but her diction made me feel a decision had already been made!