Yes, all rentals are a short shuttle ride away. If you are an Emerald Aisle member, designate someone in your party to be the runner. Meaning, if a shuttle full of people arrive together, chances are most are EA members. Since it's a first come, first serve car selection, you want to pick a car, FAST! When we were at this airport in March, we knew we wanted an SUV or a mini van. All they had was one mini van, no SUVs, and many, many Astro vans, which resemble ice cream trucks. Since I drive a Land Rover at home...no way was I spending 2 weeks in an Astro van. So, RUN FAST.
Also, you are very rushed at the booth as you drive away. I was told that the Nat'l employees normally make you pay a rate higher than what you're quoted on-line (if you made on-line reservations). This did happen to us, too. They rush you. So, you may want to wait a few minutes so you're last in line leaving, and you'll be less rushed.
We also drive from Fort Lauderdale to Orlando. You'll get so sick of those "Yee Haw" signs! You'll know what I mean when you're there...