Sometimes with rental cars you get what you pay for though. We rented several times through Advantage, and the long lines with not enough staff, then taking forever to get and return your car, was not worth the savings we netted IMHO. If you have a Discover card, you can use your cashback bonus to turn $20 into a $40 off coupon with Enterprise, and we've always had wonderful service with them - well staffed in the LAX/SNA/ONT airports (and at the neighborhood locations I've used), so quick lines, they find me extra discounts (like an additional 10% with a Costco membership on top of your rate/other discounts). I've heard that Budget and Alamo are decent, not so great things about Dollar, but among the 'regular' national rental car companies, reports will vary its just a matter of how much you value good service for what is usually a similar price bracket.