Stay clear of Dollar MIA One hour q only 3 people in front as Agent trys persistently to charge you for more than you need  - bigger car, lock out insurance eg if you leave your keys in flat tyre etc, sun pass for florida tolls when it is cheaper to pay at tolls if just visiting and a ridiculaous compulsory $70 for tank of fuel when it only took $40 to fill up and I was forced to leave them back with a quarter of a tank or risk running out on return to airport. All of this after a 9 hour flight no sereeee. Have used Alamo and Hertz at same airport no such problems. And the clerks attitude left a lot to be desired