I don't know about NAU now; but I graduated in Dec 07 from the Zona Rosa campus. I had a job at a local hospital before I took boards; and I have worked PRN at several hospitals, and work at another hospital now. I passed boards with 75 questions. I think all of my classmates passed boards also. I think a couple had to take them twice, but passed on their second time. I know my education prepared me for boards as well as working, so aside of the cheesy television commercials, I don't have too much bad to say about NAU.
I was an older student and needed to complete my education quickly, which is what NAU helped me achieve. I am now in a RN-BSN program at another school, and didn't have any trouble entering this program....so, take this post as you may, but this was my experience.