I opted for Hertz Marriott. What's the best way to get there and can you confirm the rental desk is in the lobby please? I'll have quite a bit of luggage so currently plan to use the hotel shuttle. I'll just keep my fingers crossed and hope I don't get a wreck. If I do, I'll be passing SFO; is it an option to swap vehicle half way through the rental and drop off the exchanged car at the Marriott at the end of the rental period? Thanks for any advice.