The students were friendly and the town was great; it's not too expensive but has everything you'd want or need. Tuition is a good deal if you're in-state. Pass/fail grading system could be a good thing to relieve stress. Good secondary app.
What impressed you negatively?
The overall feeling I had there. The staff/students were kind but seemed bored and didn't seem to get along with each other. I didn't get to see the anatomy department/cadaver lab or some of the other facilities outside of the one main hallway, and it gave me the impression that the school had something to hide. This was reinforced by the way my questions were handled - instead of answering my questions, I kept hearing about an old ranking of MSU in US News and World Report. I got the feeling that the DO program at MSU gets along because of their asociation with the undergraduate program and university in general.
What did you wish you had known ahead of time?
Limited options for rotations; be sure you ask about this.