I just got back from my interview and it went great! There are two one-on-one interviews, at least one with a prof. Then a tour and lunch with some students. Everyone was really laid back and willing to answer ?'s. There is one prof there that is pretty anal I guess, but I didn't have to interview with him. Just don't take it personally if you meet with him. Most of the time in the interviews was spent with the prof trying to convince me that Cleveland is a great place to live. Good luck!