We use Alicia's services on ad hoc basis to look after our 21 month old daughter. Alicia picks her up from the nursery and takes her to our home, where they will have dinner, play games and read books. Alicia sends updates regularly, often together with a picture (these are particularly nice to get :)), to reassure us that the little one's happy and that they're having fun.
Alicia is very flexible and has helped up out even on short notice.
Overall, the girls get on very well and we always find our daughter in a cheerful mood when we come home.