Someone called me from the headquarters in Kansas and conducted a phone interview. They called me a few days later to schedule an interview in the office. The interview lasted 3 hours. Interviewed in 45min increments with 2 people in the first set and one in the other 3. The last conversation was through the HR person in Kansas to wrap things up; I asked her how long it will take to find out as well as how many people interviewed (in this case, 3). The questions are based on situational events you have gone through. They'll ask a situational question, and you have to tell them the incident, your behavior, and the end result. This went through all 5 people I interviewed with. They called me a week later to tell me that they had offered it to someone else.

The office is very professional. The interviewers were kind, respectful and welcoming. It was one of those interviews where you can sense they are looking for something specific but you have no idea what it might be. (Mine turned out to be "reporting.")