Hi,
I used Kids Nite Out last January for my DD2 when DH and I wanted to go to the Dine with an Imagineer Lunch and have nothing but great things to say about them. First they are wonderful to work with and really explain everything up front to you when you make reservations.
They sent exactly the person of my specifications (older female - what DD is use to in daycare) and she was prompt and a very lovely person, and strange as it may seem we even knew someone in commmon. She had a suitcase of age appropriate toys and movies (we were staying in DVC villa so had a DVD player). I made sure snacks were available for both DD and sitter.
The whole experience was well worth it....both as time for DH and I to be alone together and a great break time for our DD. You won't be sorry.