Interviewed Oct 2008 in McLean, VA (took 2 weeks)

The whole interview process itself consisted of 2 interviews, one on my college site and one in their corporate headquarters.
The initial communications with the company was done through my college career site. Afterwards a 1:1 interview was set up with a senior project manager. The interview was set up to be casual, as to put less pressure on the interviewee. The interview itself was fairly simple, just behavioral questions and nothing tricky. The only question that might have been considered tricky was naming a movie, book, or show that you liked and how it motivates you.
As for preparation for the first interview just know the general information about the company, but nothing technical is needed since all the questions are behavioral. Just be familiar with the company and your resume.
After the first interview is done about 1-2 weeks I heard back from them for a second interview on site. Before the actual interviews take place you get a quick background presentation about the company and general information about how they do things. This is done with a group of people who are also there for their second interviews as well. After the presentation they have new hires come in to talk with the group in case there is any questions for them.
The interview there consisted with talking with 2 other individuals who I believe were also senior project managers. The interview there was not much different from the first except less tricky and more on whether you actually want to work there and if you're a good fit. All the questions were behavioral. For preparation just be familiar with what the job actually entails, and be familiar with the company and your resume. One question I remember off the top of my head that wasn't about the resume was what I thought business analysts did, so all in all it was very simple.

My perceptions of the people interviewing me are pretty positive. They seemed really easy to approach and talk to so there wasn't that much pressure during interviews. One problem I had was just contacting the general recruiter though. Emails don't work that well with the recruiter I and when I called usually no one picked it. Other than that the actual interviewers were nice people and easy to get along with.
The office was also pretty nice, something you'd expect from a business in McLean. Nothing really special about it but it is a multi-floor building thats pretty large and has a nice view of the McLean area from upper levels.
The work culture seems to be really easy going. No suits required when working in the building, just business casual. Though professional dress is required when meeting with clients. The new hires came and talked with us also seemed very easy going and nice.