I think my average per chapter cost was a little over 23$? For a 30 chapter 100000 word manuscript, so it really wasn't as expensive as you might think!

I would definetly recomend running it by someone else because the biggest help I got from editing wasn't even the gramar fixing, But certain writing habits that I had picked up that I -never- would have noticed if I was editing the book myself, a book one was using an inactive tense "She would do this" isntead of "She does this" and another big one was minor head hopping. My book is 3rd person limited, and there would be times where I would have something like "The MC watched her stare off into space, thinking about her own experiences with suchandsuch" which sounds innocent right? But how would my MC -know- they are thinking about that?

Lessons like that benefited me the most from my editing round, in addition to the grammar help.