Can confirm: have used Scrivener more or less exclusively for books since 2008, in which time I've written and sold about 15 novels. Scriv is a bit gnarly and

Can confirm: have used Scrivener more or less exclusively for books since 2008, in which time I've written and sold about 15 novels. Scriv is a bit gnarly and bloated these days -- feature creep is a thing! -- but it still makes refactoring complex compound documents with multiple narrative threads vastly easier than any mere word processor. (Best analogy for developers: if Microsoft Word is a text editor, then Scrivener is an IDE. Project oriented, multiple sub-documents, tracks metadata relating to subdocument state, allows tagging and searching, and it's an editor on top.)