It works! I recently moved. When I gave it to the people commenting on my Facebook I was living at the old address for my apartment. I was expecting to move into my (our) first house within a couple weeks. The address I gave out was the one for my new home and asked people to send the books to put in our new library. When I arrived, two brand new books were waiting for me on moving day. A third quickly followed. I jumped up and down with excitement.
My boyfriend has also gotten several and continues to get more every day.