I've been waiting to "visit" 3 sites in the NTTR area. My dad's grave, and two homes.
While the major roads are right, and some feeder roads I was surprised to find added streets and weird twists that make no sense. His house is there, but the roads to it are only vaguely as they should be. The Veteran's Memorial in Boulder City has all the right roads, but instead of the lawns and small buildings, it is a business park. Big buildings.
They went to the effort to place buildings, but I guess it was done on an interpolated map, with reference to a real map for major structures only.
Not really a problem, but I was really looking forward to sending a pic of my step mom's house to her from the Mustang's cockpit.