I interviewed at Stanford University (Stanford, CA)
Interview
campus view great. reimbursed trip. Likes the campus and atmosphere. Nothing to complain. Scheduling for desired professors on the list was hard (you may not get to see the people you want to meet, and meet with people you did not expect).
Interview questions [1]
Question 1
Tell me about your undergraduate project. What's your research interest.
Meetings with different faculty during recruitment weekend to talk about your past research experience and what your current interests are. It was a long weekend but at least he trip was paid for by the program.
I applied through college or university. The process took 3 days. I interviewed at Stanford University (Stanford, CA) in Feb 2013
Interview
Visited campus for several days and met with many faculty members in my department, along with lab members in the groups I was interested in. Current grad students hosted us and took us out to dinner in Palo Alto. Lots of formal and informal opportunities to learn about grad school at Stanford. Interview experience and intensity will really vary by department, though.