Our guide, Fred, was extremely knowledgeable, considerate, and engaging. We were a group of five, one of whom was disabled. At picture/tour stops where the disabled individual was unable to participate, Fred drove her to nearby interesting areas for her to enjoy. Amazing!
The four-hour tour went by so quickly, even though we stayed in the city. I could not recommend this tour more: comfortable, informative, flexible, and most of all fun.
This was my 3rd SF tour for friends, and by far (without question) the best.
Kudos to you, Fred, for providing a brilliant, lasting memory for my guests!