Will use this Viator service any time it is available.
The car arrived within 10 minutes of us calling them. The car was very comfortable. The driver was exceptional and we chatted about landmarks on the way into town. Would recommend as this service removes any worry about taxis etc. At the time was also good as BART was on strike.
Telephone connection at airport to car company was difficult, time consuming and therefore costly for us as overseas visitors. Car then took more than the quoted "few minutes" to arrive. We would have been far quicker and cheaper simply hiring a cab at the airport. Plus side, the driver was friendly and helpful.