when I had the interview the interview they had lunch and tours at like 12pm or so and the interview was at about 1-1:30pm.
I was interviewed by a DO who taught at the shool and by a 3rd year student. Some people were interviewed by some of PhD's that teach us, and some even had the dean. The interview lasted approx. 25 min. They were very friendly.
The interview process is totally different than at NYCOM where you sit in the same room for hours stairing at the other interviewees.
good luck, if anyone has any further questions about SOM feel free to ask me.