We did this back in 2004 and LOVED LOVED LOVED IT!!!!!
We had a 3, 10 and 7 year old. The older 2 wanted to do E nights and the night parades and fireworks and the little one was NOT going to keep up!!!
We used the service EVERY evening we were there for our little one, ensuring the older 2 got to experience the night magic with out their screaming sister.
The sitter took her out of the room for a nice long walk around the AKL to see the animals and for story time in the lobby. She brought a ton of stuff for them to play with in the room, including bubbles, nail polish and princess spa stuff ... my daughter LOVED LOVED her sitter and thought of her more as her friend than a babysitter. The sitter bathed my daughter for me each night before bed and brushed her hair out and braided it (as my daughter loves to have her hair braided so it will be wavy in the morning)
I honestly can't say enough GOOD things about our sitter!!!! She would EVENTUALLY pop in a Disney movie for bed and let my daughter watch it until she fell asleep. The sitters ARE entertainers and don't prop your kid in front of the TV the entire time ... but she (she even asked us if it was okay) liked to settle them down for bed with a quiet movie.
The only issue I had was with the resort giving us a hard time about giving the sitter an extra key. It took us FOREVER at the front desk to get it approved the first night. This had nothing to do with the poor girl and everything to do with the resort.
If you have the cash to splurge for it, I would highly reccommend it!!! That way the little ones aren't out late in the parks and tired and grumpy. This gives your older kids/ parents a chance to ride all the big rides and see the night attractions... it also gives mom a HUGE break from carrying a stroller and toddler gear
