AUTO SLASH has great customer service! I made a reservation through AutoSlash which clearly stated UNLIMITED MILEAGE. Upon picking up my rental car from ACE RENTAL, I’m informed that I only get 100 miles a day. I had to spend $150 to buy "extra miles" from ACE. They also gave me a rental car with the FUEL level on EMPTY and was told to go fill it up myself. AUTO SLASH quickly fixed the mileage problem for me BUT I would never recommended using ACE RENTAL CAR.