Two round intern, fit questions mainly. There was one case study question involving a generic company. Not super intense. The biggest thing is making sure that you realize who you are interviewing with and communicating your desire to work there.
I applied through college or university. The process took 1 day. I interviewed at Deloitte in Oct 2011
Interview
I had one interview in the morning, which was split into a 15 minute behavioral and than a 20-30 minute case study. Within two hours, I had a phone call asking me to come back the same afternoon and had another case study interview. Deloitte was reasonably flexible about fitting my schedule, and had employees in the waiting area to help make you feel comfortable before going into the actual interview.
Interview questions [1]
Question 1
As an engineer, at first case study interviews can be a bit off-putting because they ask about situations unfamiliar to an engineering background. However, in reality, case study interviews are perfect for engineers--they are really just evaluating the ability to think on your feet and logically, systematically approach a problem.
I applied through a recruiter. The process took 1 day. I interviewed at Deloitte (Hartford, CT) in Apr 2011
Interview
The people at the office were very nice. Very cordial environment. The interview was structured. 30 minutes interview with a partner and 30 minutes with a senior manager.