This is a big airport compare to what I'm used to in Hawaii.
Here's some advice. When you get off the plane, pay attention to the sign especially if you need to claim your baggage or get to your rental shuttle. The rental shuttle ride is about 5 minutes ride.
After you return your rental car, pay attention to which shuttle you need to take depending on which airline. I've made a mistake of getting on the wrong shuttle before and it can take another 20 minutes of your time.