A recent source of frustration has been that MDA objects only allow me to go 3 levels deep. SFDC objects appear to let me go at least 5 levels deep.
This limitation on MDA objects has hindered me from setting up a global filter for Directors (i.e. the CSM’s Manager’s Manager). When the report is built on Timeline, for example, I’m only able to go from Timeline → Company → CSM → Manager ID and then I’m stuck. I’d like to avoid creating yet another new field on the user object if at all possible, but I don’t see a way around it.