Good one! It did let me add different bits of CSS to different pages and sections of the site, so I could add a custom background to every menu of my site without editing my template and cluttering it - not to mention I can update the template without worrying about my change.
Excellent extension! After trying a few map components available, I found this the simplest to use and yet accomplished the job of putting a map on a page.
I noticed a small bug though, and it was promptly solved by the author, great support!