During the main, bus, tour, Sally was a great tour guide. She really knows the history and deep background of the people and places on the tour. Chris was a careful driver who thankfully kept the ice chest loaded with water for a hot and humid day.
The morning tour guide, Brenda, gave us a highlight walking tour of Arlington Cemetery with a changing of the guard ceremony. She made sure we got in position for the best views and photos. It was not intended to be a comprehensive tour, but it gave us enough to start so we know what to look for when we go back.
The boat tour was OK, but I would rather have heard Sally narrate the boat ride rather than listen to the very basic information from the recording. I'm honestly not sure the boat tour added anything special to the DC experience.