The initial scan can take as long as 24 hours to be generated, however that all depends on the size of the site being scanned. The cookie categories and reports are automatically created for you, however you can also customize the panel with custom cookies and categories, as well customizing the CSS to control the look and feel of the panel. I choose to start out with defaults only. The image to the right is what my site looks like after the initial report was generated.
I also received a report in the inbox configured for the account with details on what was found in the scan and which cookies were treated as falling into the pre-defined categories. For example, the scan found two cookies that were designated as necessary for the site to function. There were also items found in the preferences and statistics categories.
While these two services are by no means the only ones out there, I found them to be the easiest and simplest to implement.
(The featured image is copyright of HarperCollins Publishers)