Read about USC on SDN and tried to get a good nights sleep.
What impressed you positively?
The school is very nice... as are the students and staff.
What impressed you negatively?
The area of LA where the school is located is a dump! Students told me that most of them lived out of the area, paid for their trimester parking pass and drove to school. I concur.
What did you wish you had known ahead of time?
I finally was able to find out what the board scores were... for those of you also concerned they are a respectable 86-90% for both 1 and 2. That puts them in the top 10 in the country.
What are your general comments?
The interview is not stressful, but if you want to look good just act professional and courteous to your peers.