I know a couple of people who have them. The only drawback I can see is that they make it difficult for you share your books. I usually read a book and then it gets passed around to friends and family and they do the same...but the plus side is that they are light weight and have BIG print. And after nearly killing myself while reading Stephen King's 1,074 page, 3 lb. book, "Under the Dome", light weight could be a good thing! :D