I’ve recently started using MainWP having spent many years using ManageWP, and the main reason for changing is the reporting flexibility in MainWP - the reports in ManageWP are not very good. I’ve spent a lot of time putting a report template together that [almost] exactly matches my hand-crafted PDF reports, most of which is automatically filled out, but not all.
I’ve got a code snippet that returns information from the child site that I then have to manually add to additional tokens, which then get added to the report. Not a problem if you don’t have many sites to do this on but it soon becomes unwieldy so the addition of this would be amazing and such a time-saver!