Spiral staircase gave us a little trouble. It takes some getting used to. Go slow, and use the handrail and you will be fine.
There is no privacy in the bathroom. There is a gap between the wall and ceiling, so you can hear everything if you are in the loft area. Only way to get some privacy is for everyone else to be downstairs.
There were only 2 of us, and we are old friends, so no big deal.