I started with the company from a Job Fair at my university. The turn around time between meeting with a PR and getting an e-mail took about two weeks. They let me know about on-campus interviews and I signed up for one.
At the interview, I was paired with a young gentlemen who asked mainly technical questions based around data structures and algorithms.
Afterwards, I was contacted two weeks after for an on-site interview. I had the interview in their Texas location. It consisted of 3 45-minute interviews. Compared to other friends who had their interviews at the same time, mine was fairly personality based. I was asked only one technical question, but my other friends were technically grilled. I think it matters for the random group you were placed in.
I had a fairly positive perception of the company afterwards. There were two or three presentations as well as a tour which highlighted the work environment and life. It seems very group-based, and those there seemed to be engaging and good listeners.