There were a number of steps in the interview process. I first had to complete a long substantive questionnaire. After this I had a telephone interview, lasting about 30 minutes. Then they asked me to there headquarters for a "first round" of interviews. I had to take a 1/2 day of personal vacation and an hour travel time to their suburban location outside of Chicago. When I arrived, I had a 30 minute interview with a Human Resources person. After her interview, she told me to wait in a closed conference room where I would be meeting with three upper level team members. I waited in the conference room for one hour and no one ever came to interview me. I finally checked outside, and the human resource person told me that one person couldn't make it into the office, another person was tied up on a telephone call and the other person I ran into in the hallway and he was on his way to another meeting that he could not miss. They asked if I could stay for another half hour until he was finished with his other meeting. I could not because I had to get back to my actual work.
The worst part of the entire humilitating experience, they never even called me, not even to apologize, and not even to let me know the status of my application. At some point a few weeks later, I received a form rejection letter. Not a professional way to treat a candidate.