RDU is a good airport because it is a small airport with some modern conveniences. You won't find a huge selection of shops here like Hartsfield but you won't get lost in a maze of tubes and concourses either. It serves the business community well as a functional airport but you'll pay the price if you have an early morning flight. Forget getting any taxi driver to come pick you up to take you to the airport if you have a flight earlier than 6:00 AM. You'll have to drive or have someone drop you off.
Pros: Easy to get in/out, Parking shuttle
Cons: No early AM taxi svc
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