Enterprise Products Engineering Development Rotational Program interview questions

I went to my university's career fair and talked to a recruiter. I was contacted a week later for an on campus interview. My on campus interview was really chill. It was strictly a behavioral interview, and the interviewer was an alumni from my school. Exactly one week later I received an invite to a second round interview on-site in their Houston headquarters. The second round consisted of a breakfast with the other interviewees, 3-45 minute interviewers with 15 minute breaks in between, and an ending lunch. The second interview was even more chill. I received an offer the following day.