Received an email approx a month after applying. Had a brief phone interview with 2 people, then came in probably a week later for an in person interview with 3 people. The interview was pretty friendly and focused on my previous experiences and why I was interested, what I wanted to get out of it. Generally there was no curveball questions- asked me what some problems in the program were, etc. FYI, in order to intern you have to prove you will get credit for it. Maybe a couple days after the interview they offered me the internship.