We use Custom Reports to report on content each month and find it very helpful!
We really need this to be enabled for Initiatives as well. We currently have to manually count up certain things in Initiatives to get what we need each month and it's very time consuming. Being able to use Custom Reports for initiatives would allow us to set a custom date range (so that we can isolate and report on individual months/years) and also export the data into excel allowing us to much more easily add up the amount spent on campaigns and the total number of leads (this data comes from our custom fields).
Thanks for listening!