Prepare extremely well for the case interview, and practice setting up equations from the question they present to you everything is standard interview stuff. Express interest in Software Development and the Company and Technology.
It was a day to spend on campus, it had alot of activities back on the day. Most important just focus on being confidant. There was also a scavneger hunt
The Power Day was extremely intense, lasting 4 hours, but it was a great experience. It depends on what order they give you, so I got the case interview first, then the job fit interview, and lastly the behavioral interview.
Three rounds, math portion wasn't bad I didnt do well on the last round of behavioral. The interviewers were very nice and understanding. The earlier you get your offer the earlier you can choose between the Arlington/Richmond office. Arlington office gets filled pretty quick