My book is now with the publisher and I am awaiting an electronic version for editing. This book is creative nonfiction and is basically my life story with several name changes. My experience is that the keys to writing Memoir are organization, perseverance, and an innate desire to tell a story. Of course, it also helps if you like to write. On the other hand, if you don't like to write, you can attain a ghost writer to do that for you.
A memoir is interesting if your life, like mine, is sometimes more unbelievable than fiction can be, and you think it would be a good read. A memoir is an awesome way to preserve your family history and chronicle the history for generations to come.