We are using this quite often. Pretty simple to use. When they have writing time, I say, “why don’t you do a story starter.” They get the book and select one they like and write the ending to the story. Then we have a little “conference” about it – spelling, grammar errors, things that make it sound better, and ending maybe.
That’s it. I have some kids that love using it and some that don’t.
My kids are 10, 12 and 13.