What are your general comments? This interview is a get to know you session, so be yourself and be prepared to ask intelligent questions of your interviewer.
What was the most interesting question? Tell me about yourself. Specifically, what influenced your decision to pursue a career in medicine. I was asked this too
What was the most difficult question? None were very difficult, more probing than anything else. I was asked this too
What impressed you positively? How happy the students were with their choice of medical school, and how caring the admissions staff was.