I’ve had friends rave about Scrivener as well. But frankly, the guy who owns it is kind of a jerk, so I don’t want to give him my money. I saw a blog post by an author who tried Scrivener and found it difficult to use; I remember she complained that she couldn’t figure out how to change certain settings and the “Help” documentation was no help at all.
Well, the creator hopped on to her site and left a defensive comment along the lines of, “Excuse me, but the guy who wrote the help documentation is a good friend of mine and I think he did a fantastic job.” It had the tone of, “If you don’t think our product is perfect, you’re just incompetent and ungrateful and don’t understand how hard we work for you.” I really can’t stand people like that. So whether the software would be useful or no, I’ll do without.