I have used this car service twice to be picked up from the Oakland Airport and driven to San Francisco (and back). Both times, the car service was punctual and courtesy. The cars are clean and offer complimentary water. \r
The only annoying thing to be aware of is that most car services at the Oakland Airport (at least for Southwest Airlines) pick up on the ""passenger pick up area"" just outside baggage claim. In both of my trips I have only seen one car service with a driver holding a sign with a name in the baggage area. So, this means that you have to be able to connect with the car driver via cell phone so that he/she knows when you're ready to be picked up at the street side area. This can be a little nerve racking. And since most car services are doing this, perhaps it's partly due to the fact of how the Oakland Airport set up things ... not necessarily the car services' fault. \r
Otherwise, this is a professional and well-run car service that I would recommend.