We had to wait quite a bit for the shuttle bus at LAX. Several AVIS and HERTZ shuttles came before one Dollar shuttle arrived. At the rental location, there were many people at Dollar, possibly because it was around noon, a peak time. We waited in line for nearly an hour. They did offer additional insurance, which is optional depending on your choice. Initially, we chose a Jeep Cherokee, but it struggled with uphill roads. Later, at the Dollar rental spot at San Francisco Airport, we switched to a GMC. Its performance was much better, although it consumed more fuel. The car exchange process was very convenient: just refuel, a quick inspection, and then you get a few cars to choose from, which was nice.