I've written two articles using Rankify and they were not good. Generally when using AI for content, I still go back and make it my own, but I honestly didn't know where to start editing it. I honestly think it may need more prompting, but you're only able to add keywords which is very limiting. If I could add a summary or more specific commentary for it to write from I think it would be more useful. But maybe it's not meant for expanding on existing concepts/ideas.