First year they were accepting PhD applications. You must apply one year before you graduate like most internships. They were extremely friendly and efficient. Assigned everyone an interview buddy, and prepped you for the interview process (great considering many of us have never had a real interview coming out of a PhD). Interviewed with two Management Consultants, who were both kind and professional. Study your cases! And then be prepared to think outside the box.
Seems like an amazing place to work. Definitely a great first interview experience.