My experience with Firefly has taught me that shopping on price alone is not the way to go. As if Airline Fees aren't bad enough, Firefly seems to have managed to bring them into the rental car business. I agree with others who post about their inflexibility. They spent more time trying to up sell me than actually focusing on helping me. And that was after the ridiculous wait thanks to being light staffed on check-in/return. Just skip'em.