Read this site, read over my file, thought about answers to some commonly asked questions -- healthcare system, etc.
What impressed you positively?
The students were very enthusiastic and had a lot of pride in the school. The level of competition among them was incredibly low. While most schools claim that this is the case, I think it is particularly true here. The students seem to genuinely like each other, and each class elects two social chairs.
What impressed you negatively?
Not much. The student lounge could be nicer, but that's just a detail.
What did you wish you had known ahead of time?
There are several buses from the LIRR stop to the stonybrook campus, and several tour the undergrad campus first. Make sure to ask your driver if you have the right bus.
What are your general comments?
I was really impressed by Stony Brook. I went in not expecting to like the school all that much, but the attitude of the students and faculty were great -- open, friendly, supportive, very proud of the school -- and I could see myself going there. The facilities are also pretty good; the whole med school is wireless, the anatomy lab is really big, sports complex on the undergrad campus (available to med students) is good.
My interviewer fired questions at me, and was a little abrupt. But he was good natured about it, and even though it would probably have read like a stress interview, it was actually pretty relaxed and fun. He was very candid about the school, and also very positive. After feeling some burnout from this process, Stony Brook got me excited about being a doctor again.