Insperity's selection process is not short. I had several structured interviews. First, the recruiter; we spoke first and then set up another time for a formal interview. After the recruiter, I interviewed with the hiring Manager. Next step was an interview with another manager (called peer interview, manager's peer) the final interview was with a director and future co-workers.

It is very formulaic. Not very conversational. Managers pretty much have a good idea of who they want to hire so interviewing can be seen as a waste of time. Lots of situational questions are asked. Be sure to have extensive employee relations experience or they will just go through the motions with you and won't consider you at all.