Had an initial typical phone interview. Then they came to campus and we had 2 interview with 2 teams. Each team consisted of 3 people, 1 of the teams included the guy who created the program. They messed up my interview slot but were accommodating and flexible. They asked typical questions and wanted stories in detail, i.e. explain a time when you had to deal with someone that was troublesome and unyielding (paraphrased). They had a pretty fast turnaround afterwards but led us to believe that was the final round but they continued on with more detailed phone interviews.

Relaxed first and second round interviews - there were simple behavioral questions (tell me about a time when...). It was definitely more for the interviewers to get to know you, as they were likely to retain an associate from the group. There were no trick questions or case questions for either 1st or 2nd round.