The interviews were all very fast paced and upbeat. There were three rounds of interviews in total the first one was a 15 minute phone interview with someone from their University Recruiter team. She was very insightful and very helpful. The second interview was with a member of their HR team. It was another phone interview, this time lasting 30 minutes and very straightforward and a lot more serious than the first one. The final interview is when they fly you out to their headquarters in Chicago.