MBABoss, my interview lasted about 40 minutes, it was a skype interview, and I had two interviewers. I think that was a decisive factor why I thought the interview was quite intimidating. They were standing, and I was seated.
As for the questions, they were similar to other MBA interviews (go through your resume, talk about your goals, why Queen's, feedbacks you had, time when you were a leader, time when you were a team-member, etc.). I just thought they were a little bit more serious and skeptical about my responses compared to other interviewers I had. Overall, I think I performed much better on my other interviews.