You can make reservations at hotel restaurants or pre book spa treatments and the like, but don't confuse this with concierge level booking at a Disney resort. They are separate and unique offerings.
From their website
"This system will enable you to make advance reservations for several essential things. You may wish to reserve a town car to pick you up from the airport upon arrival, make dinner reservations in one of our signature dining restaurants, arrange for a massage or manicure at our luxurious Mandara spa or perhaps arrange for your child to attend Camp Dolphin so you can enjoy a night on the town. It's all possible with this easy-to use system."