Nothing! This is a great and reliable source for server admins to monitor the number of hits on every view of a dashboard. This extension allows dashboard creators / developers to be more specific on the origin of the visitors of your dashboards as it uses Google Analytics to regsiter the hits on your dashboard. Besides all that the Dashboard Usage extension can be much more specific of several functional elemenbts in the usage of your dashboards like the use of filters, parameters en interaction with marks within your sheets.