SDN, reread personal statement, reviewed past research.
What impressed you positively?
Almost everything! This program isn't just thrown together like many of those out there. It's well organized and has great faculty, facilities, research, and financial support! The graduates go to top notch training programs. The gym is incredible also.
What impressed you negatively?
The cost of living was higher than expected. The student body didn't seem very diverse. Public transit is nonexistent.
What did you wish you had known ahead of time?
You definitely need to own a car to live there.
What are your general comments?
It was a great interview day! All the faculty were easy to talk with, and the interviews were more conversational than direct questions and answers. They really wanted to know about you and your interests. Of the 7 interviews, only one was somewhat stressful, and I think that interviewer was just tired from seeing applicants all day. Several of the interviews aren't used for evaluation, but they function as recruiting sessions.
Overall, I enjoyed the day and was extremely impressed. This place may not be on the tip of everyone's tongue yet, but it will be soon.