Thorough, which is important for this work. But also takes a long time. That is because of the background checks and also back-end issues, I think. I would say that the process allows you to interview them as well, to get a sense of the culture.
Interview was a really long time ago. Program was barely opening in my area. Can't really remember specific questions, sorry. I would say the questions were in general average. Can't say more because I don't remember the specifics.