I love, love, love these books! The Saturdays may be on my list as a personal favorite. We all read them, like Linda some of us read them more than once. :-) To me they were very inspiring in developing individual talents in children--each of the children has a "talent". They are a bit similar to Edith Nesbit's Bastable stories, except the children have real accomplishments which they enjoy. They are beautifully written.
We also have a number of other Enright books in the house, like the Gone Away Lake books and Thimble Summer, but by far our favorites are the Melendy books.