Seriously? No one has ever used them? Guess we better steer clear!
Sorry, I wasn't watching this board for a few days. We had a great experience with our babysitter. The hotels have a list of several childcare companies to choose from. We let them choose one for us, and were very happy with our sitter. And now I can't find her card so you can request her specifically! She was a young grandma who adored kids and really understood how they think. She came early to get acquainted with the kids, asked a lot of detailed questions about their likes, dislikes, foods, drinks, allergies, movies they were allowed to watch, activities, schedule, and a bunch of other relevant things that I probably would have forgotten to mention. She was fun for us to talk to, too. She also works frequently at the Disney resorts.
When we came back, the kids were tired, happy, fed, and in their pajamas. If I find her business card, I'll post her name so you can request her. We've used childcare services at Disney on three occasions (the Dis/US resorts all call the same services), and she's the best we've had. We really, really, really liked her. If I can't find her card, don't worry. We've really liked all of the other sitters we've had in Orlando, too. Very professional and conscientious.