I had my interview this week with an alum. Overall a good experience. I was incredibly nervous going in, but that disappeared when we started talking. The alum was very nice, encouraging and easy to speak with. We spent a lot of time on my professional experiences on my resume, asking probing questions to find out more details, and then the standard, why MBA, why Kellogg, and other related questions.
Now the waiting begins! Good luck to all!