Linking subaccounts to an organization

At our University, we have a main Zoom account with most of the users, but we also have a number of subaccounts for individual schools that need different settings (HIPAA compliance at the med school, for example).  This article suggests that by linking all of the subaccounts under an organization, all of the subaccounts will be able to work together with meeting invitees and alternative hosts (the med school can invite a user from the business school as an alternative host, etc).  

Has anyone tried it?  Looking for pitfalls before we try implementing it in the middle of a semester.

Thanks in advance.