I met with the hiring manger. He wasn't an extremely warm person, but seemed nice enough. There weren't any crazy or weird questions, just excel (V-lookup, pivot table, etc) and questions about working in groups. I'd prepare as you would any other interview. Learn the basics about the company (Wikipedia?), think of answers to obvious interview questions (Why do you want to work here?, etc) be friendly, well rested.

Super casual interview, very nice interviewer. Basically made me think I was for sure going to land the position based on her comments, but ultimately did not get the role.