Howdy, I have a lot of experience both writing and reading scripts and prose (stories). I'm an expert on writing with over 20 years of experience. I can tell you exactly what works and what doesn't in your script or prose.
Standard gig: I will read any length of script or up to 5000 words prose (about 100 pages) and give you a page or so of what I thought. This will just be a general sense of your story as a whole. Best buy if you just need someone's first impressions.
Premium gig: I will go through your script and write out idea to show points for improvement and parts that I think would do well.
Extra Premium: Same as above except I will also edit out the grammar and formatting mistakes as I go.