Did not have a rental car available until the next day.

Advantage in Phoenix was the worst rental car company I ever had to deal with. When I arrived at the rental car center, Advantage did not have any rental cars available. Also, at 20 other groups of people were waiting in line at 12 midnite for a rental car with no cars available to rent. I had to rent a car from Dollar rental cars for $114 for 24 hr. rental period. I had to go back to Advantage the next day. They only had diesel cars available which costed me more than $50 in gas as compared to a gas car for the 19 day rental period. The worst rental car experience I ever had.