The first few rounds consisted of video screening calls, which seemed to primarily serve as a character assessment. The conversations were split between experience, interests, and personal topics. After that, I was flown to site. The day I spent there consisted of a site tour, lunch, about seven 30-minute 1:1 interviews spread throughout the day, and a one-hour presentation of the research I was performing in my master's program. For interview difficulty, I selected difficult. While none of the individual interviews were particularly difficult (in fact I found them all to be enjoyable), the sum total of them--combined with the research presentation--necessitate an above-average rating.