I made my reservation online only two days in advance, and I was able to walk into the rental office and leave with my rented car only a few minutes later! The same representative helped me with pick-up and drop-off, and she was very helpful and professional both times. Also, setting up my reservation through Kayak helped make things simple as well.
Nothing! I've used another car rental service nearby in Downtown Atlanta, and frankly this Enterprise offered me fewer issues and a better value for my experience. If I need another car rental, I will probably be returning here.