One of the most common reports requested by my users is a quick summary report that displays major KPIs: page views, visits, unique visitors, time spent, revenue, orders, bounce rate
Currently this requires building a dashboard for every reportsuite with custom reportlets. It would super helpful to have this as a standard report in the interface - just like Google Analytics.
The KPIs should be configurable by admins since different clients care about different metrics but the idea of a summary report is probably interesting to all clients.
I am positive this would quickly become the default report for many