I frequently have to go from berkeley to SFO and Bayshore limousine is the car service I use. The owner Sam is a very friendly guy and he makes an effort to be friendly and serve you as a friend instead of just a customer. I have also used a limo for a night in the city. He always provides complimentary champaigne which I appreciate because you are spending a lot of money for a night in a city and it is good of him not to nickel and dime you. I recommend trying bayshore limousine.