My interviewer had actually looked at my file before I came in, and was familiar with it. At a previous interview in another school, my interviewer was looking through my file for the first time during my interview.
What impressed you negatively?
The way 40 of us were in the group together. It felt more like orientation than an interview.
What did you wish you had known ahead of time?
The essay. Even though it was a pretty simple topic, I had no preparation for it.