I had three interviews: One hour-long phone interview with an HR rep to talk about my resume. One ~40 minute long phone interview with PMO manager to discuss my project management background. One two hour long in-office interview with the PMO manager and the other project managers- this one was rescheduled twice. It covered my project management background (again), and just general personality questioning from the team.
I have a feeling that they had no intention of hiring anyone. Some of the questioning sounded a bit like they were trying to get a bit of advice from me... seriously. None of the questioning was difficult. I am most likely more capable than the manager who interviewed me. They knew enough about my background to know that I have experienced enough in my years as a management consultant to manage their project management office, let alone just work in it, yet they'd prefer to "continue interviewing other candidates." They didn't provide a reason why, but did invite me to apply to other positions in the future...
The PM team seemed like a group of nice, fun people. However, I'd recommend approaching this interview as practice for other interviews. One of the former employees did mention in a review here that they have no qualms about interviewing people whom they have no intention of hiring.