First interview was 30 minutes with HR; essentially a pre-screening. Second interview was with two women I would have been officing with, one a manager and the other a peer, and lasted an hour. This interview was pleasant, but it was also obvious that the two women had not spoken to each other beforehand as they repeated the exact same list of questions twice. Could have been cut to 30 minutes. Third interview was with a male manager in the Chicago office. This interview was less pleasant. I answered all of his questions and we laughed, but at the close of the interview he gave the impression he felt that I had "used his precious time inappropriately". It was a complete flip-flop in the last 30 seconds. After that I never heard from them again. I contacted two different HR people multiple times inquiring about next steps and never even received a response. I spent over 6 weeks interviewing with them and they couldn't be bothered to take 5 minutes to state whether they had continued interest in my employment or not. Extremely rude and unprofessional.