If you use this company and have paid in advance, beware your driver will not wait for you should your flight be delayed. On arrival at SF airport, no driver holding up board with our names (as advised) was to be found. Our flight had run about ten minutes late and unfortunately we were also held on the runway for 15 minutes thus a total of approximately 25 minutes late. We picked up texts from the taxi company which did not arrive until we were waiting in the arrivals hall giving us another pick-up area at the back of the airport but no taxi was waiting. I telephoned the company to discuss this but basically was told that we arrived late and they couldn’t help us, no apologies. Apparently our fault! They do not check flight numbers to see if they’re delayed! We then had to make alternative arrangements at an additional cost. Great welcome to San Francisco after a 10 hour flight. Definitely would not book again or indeed recommend.