I had been used to the built in summary reports of the BES Manager with 4.1.6 and couldn't find them initially in the BES 5.0 BAS.
After some digging and searching they are there...(in case anyone else also used these in the past and wanted the same).
In the BAS, perform a search - filter with nothing fo all users or choose an appropriate filter for your search.
Choose 'Manage multiple users' from the bottom of the search results
Once the page refreshes to the list of users with check boxes, at the bottom is more options.
Under "Organizer data synchronization" is where the 2 old reporting functions are: '
Export asset summary data for selected users' and '
Export statistics for selected users'
Choose the users you want (or the option 'Select all results on all pages') and click one of the 2 reports.
I have been used to these 2 reports from BES for a long time now and was glad to see they do still exist.
I will however be also checking out the monitoring service and resource kits for whatever other tools for management or information I can find useful....