It wasn't bad at all. The tour was really thorough and the D4 that gave it answered pretty much all of the questions and seemed like he really liked it there. The interview was 1 on 1 and pretty laid back. Mine started off with a few basic questions and then ended up being like a conversation. The doctor that interviewed me only took a few notes and I would say that we both talked for equal amounts of time over the 25 minute interview. I would just focus on relaxing and being honest.