I recently returned from my first trip to San Francisco. I had one full day available to get to know the city, so I booked with Reed after reading all of the glowing reviews. And once again, TripAdvisor did not steer me wrong, as I'm now writing my own glowing review. I booked for four hours, but Reed didn't have another commitment, so we actually went for about five and a half hours. I thought it was completely worth every penny. You really feel like you are a part of the action, being in the convertible, but part of the action with your own private, knowledgeable commentary! He's willing to go not just in the city limits, but also to the Marin Headlands and to Muir Woods. He asks you beforehand if there is anything special you want to see, and is willing to spend as much or as little time at each location, depending on what you're in the mood for. I would heartily recommend Small Car Big Time Tours to anybody, whether it's your first or twentieth trip to San Francisco. I guarantee you'll come away with a new appreciation for and knowledge of the city.