Park and walk to guard shack. They will take you to a waiting room if you are early. At your interview time they walk you to the building. Someone from HR will come in and ask several questions about experience and qualifications etc. They whole experience is laid back and very pleasant.

I applied through a staffing agency which I guess helped get me the interview quicker. The interview itself was a group panel with other applicants and one of the hiring managers at the company. The questions weren't difficult. The interview itself was mostly conversational with the hiring manager giving each of us equal time to speak about ourselves to the group.