Anytime I see something about automated editing of any kind (including spelling and grammar checkers), I bristle. These tools may be helpful to a point, but they will never replace the keen eye and mind of a person experienced in editing. And, no, I'm not saying this because I need a job; I'm saying it because it's true.
Take a look. Would you have confidence in this product? (Red markings and bold mine.)
New AP StyleGuard offers automated style checking in Word