I was interviewed in a group of three. We did a group problem solving experience for about 45 minutes and then did individual interviews at the end. There were multiple groups of other interviews that took place, All with 3-5 participants.

It was very laid back and simple. The interviewers were very personable. I was interviewed by two people who were already employees. I didn't feel intimidated or nervous, especially being a college student and being interviewed by people in prominent positions.