Microsoft Program Manager interview questions

First interview in Toronto, Second in Seattle - included 4 rounds talking with different Program Managers.

Not sure if I am the only one, but the process of applying the position is not a happy one. The HR is not professional in terms of setting up interview schedule. I got last minute notice that the interview was rescheduled to another day with another interviewer, in a different location, without even providing the exact address of the office. There was no apology at all. I am very disappointed at the quality of the Microsoft's HR, who didn't show any respect to applicants.