We have worked with the Courtyard DD for a few years now, and honestly, they are a great group of people. We did have some concerns last year about complaints regarding cleanliness, but it was very isolated and addressed immediately. We've done three unannounced inspections of the property in the last year, and they have passed with flying colors. Also, don't worry about getting treated differently because of paying a good promotional rate...that hotel is not run that way. They are an Official Hotel of WDW, which means they have to satisfy a much higher standard of guest service. Disney also inspects them regularly as well.
Pete