We had a blast! I have been on the go car before, but my friend had not. It's great not having a roof on the car so you can see everything. The car goes as fast as the traffic most of the time. The drivers of reg cars were very courteous. I went on a weekday before and that was better because of the traffic issue. On the weekend we didn't get far, because of the traffic, until we went off of the main roads, which meant no tour voice. Bring a pillow to sit on because your butt takes a beating...no padding on the seats. Servio and the other staff at the O'Farrell and Mason location were helpful and accommodating. Viator has the best price and availability. The gocar website had no cars available, but Viator did! I already told 4 people to go through Viator to book their trip.
Experience was amazing! The three hour tour took us to all the great sites in San Francisco. There were mechanical issues though, but the car was able to get back home without assistance. Overall, we had a blast though.
ABSOLUTELY MONEY WELL SPENT!! We opted for the full day package so we could take our time and enjoy the many stops. A great way to see parts of the city that are off the tour bus routes. The staff was friendly and patient with all our questions. It is a safe and wonderful way to explore such a beautiful city.