Instruct: Classify Amazon reviews into positive or negative sentiment
Query: I agree not useful for experienced admins

I was hoping it would a nice indepth run down that was a bit more than the PDF's you can download for free. In some cases the PDF's were more helpful! It was missing out on a lot of info, concentrated more on the Server Admin utility and Workgroup util. If you are looking for a more indepth info (command line info, common file names locations), I'd look elsewhere. Sorry Apple!