Libby called a few minutes after the designated start time and verified we had time to talk. The first round interview lasted about 35 minutes. I answered about 6 questions. The interviewer was very polite, a good listener, and friendly. * I received an offer to advance to the next round (technical interview) and there is still another before an offer for a role will be extended. I rated this interview difficult because I was very well prepared and thought through all my answers to potential Project Manager questions before I took the call. Had I not done that and been prepared, it would have been very difficult to be as thorough as I was.