I was interviewed by 2 people. The interview consisted of 30 minutes of general fit questions, and then 15 minutes of strategy questions. I didn't do well on the strategy questions. To have done better, I should have done more preparation in consulting type prep work.
I enjoyed the experience. With more prep work, I could have done better, but I think they were looking for an MBA with engineering background, since that's what they all seemed to have.