Haven't used the 100% satifaction guarantee on a comp stay, but have had it apply 2 times in the last three months. Once in Atlanta when my car was broken into in the parking lot. Thanks goodness for good homeowners insurance. And a second time when at checkout the clerk asked how my room was and I said the air conditioner did not work all night. Warm, but not unbearable. She immediately took the $111.00 charge off my bill and gave me a $0 statement. Still got all my points, etc. They mean what they say.