Good lord! In my actual writing - zero. I don't use it to produce words for anything. I'm working on a book though and it was useful for building a copy-edit

Good lord! In my actual writing - zero. I don't use it to produce words for anything. I'm working on a book though and it was useful for building a copy-editor skill and asking it things like: Am I using british english consistently? Are there any grammatical errors? Etc. I still feel it's important to fix whatever it finds by hand though.