The experience that I had with the Advantage rent a car @ Charlotte airport was very poor, and for this reason I am only giving a 1 star and do not recommend using their cars. There are other rental companies there that have a better service and value. When I got to the airport I called for the shuttle, and it took 30 minutes to arrive. When I went to rent the car they did not have the one I had reserved. When I returned the car the lady behind the counter was rude, had an attitude, and I was charged for gas I did not use. When I called the customer service number the man that I spoke with said he could not help me, but that he would transfer me to a manager. After waiting on hold for 10 minutes I despaired of this company.