There are bunch of different tours. I went on the hour long one (probably the cheapest one as well) where I didn't see the bedrooms or inside of the house.
It was very hot coming here on a summer day - I do NOT recommend it. They do provide you with water and a red umbrella though.
I learned a lot about architecture from the tour and why certain things were done.
I would recommend coming here during the fall seasons because they mentioned you can see the tents out there.
So quick summary - basically, Frank Lloyd Wright would live at this place during the winter months when it was warm in Arizona but super cold where he's from. He didn't come here during the summer months - way too hot!