It would come very handy if super admins had the ability to see a log / history of changes in the database:
Who did which change when? This could be limited to, say, 30 days in the past.
So a super admin could see: - Who deleted or changed a specific room reservation?- Who changed a person's data? What and when did s/he change it?- and so on
This could help to find changes made in  error (and undo them), and who perhaps needs some help.