This tour was great! Very informative, easy to drive, done at our own pace, can skip what we don't want to see or stay longer. We would definitely do these again.
The only issue we had was when we go to the company to check in they couldn't find our reservation for about 10 minutes. After that everything was good. Be aware that you will most likely go over your 2 hour time limit and they do charge $1 per minute after that. We went over by about 20 minutes, which I didn't really care about another $20, I thought it was fair.
I love that the car talks to you, tells you where to turn, shows the gps map. It was really great, plus all of the attractions that were fit in to the tour. It had a lot of what we wanted to go see while we were in San Francisco. It was perfect for us. Golden Gate, Bunkers, Canon, Beaches, Lombard Street, etc...
It was very enjoyable and easy.