YORK, Pa. (AdAge.com) -- When Rebecca Gillan walks through the lobby of a Starwood hotel, she doesn't want to hear the guests talking about "good" or even "very good" service. That's because she knows "good" is only worth a six or seven when a guest fills out a customer service survey. She'd rather hear superlatives such as "excellent," "outstanding" or even "cool," because that's where the nines and 10s are.