The whole day was really very impressive. I would have to say they really make you feel relaxed, and it is a very nice campus. The other applicants were great to talk to, this makes me think they really pick good people for this school.
What impressed you negatively?
nothing, and I mean it, you hear about the 3rd and 4th year a lot but if you are ok with putting some work into what rotation you want to do, then you will be just fine.
What did you wish you had known ahead of time?
bring a pen, and maybe a pad of paper, this was my first interview and I didn't realize all that you learn.