I don't doubt that MongoDB can be used successfully, but I think the whole point of the article is that MongoDB's success is due to marketing rather than suitab

I don't doubt that MongoDB can be used successfully, but I think the whole point of the article is that MongoDB's success is due to marketing rather than suitability. Where MongoDB is truly suitable, I'm sure it shines. I've got CouchDB in production on two systems, but for applications or portions of applications that are well-suited to a document-store.