Anyways, being as it's a book, I do what I do with books. READ THEM. :)
I sat down and read it with my boy who was HIGHLY skeptical of it (after all it's main characters are female and it has a girlie theme). By the time we were finished reading it his response was "it's not bad".
Pajama Girl has learned that what design is on her pajamas influences what she dreams about. Tonight she is going to dream about cupcakes. In her dream the characters learn to do what is right. In the dream about the Cupcake Queen's coronation the girls learn the value in being helpful and kind, and therefore to do what is good and right.
It's an easy reading book with good clear pictures.
It should particularly appeal to girls, but boys won't be totally turned off either. :)