The reporting aspect of AdminDroid is phenomenal. We use it all the time when checking permisions on mailboxes. This can be a tedious task for shared boxes hen a user leaves and we need to determine where that user had access. It is also useful for identifying items outside of Exchange that deal with single sign-on, OneDrive, Power BI, etc. It was a very straight forward installation and integrating into our 365 tenant was a breeze. Support is also extremely quick, helpful and to the point. Review collected by and hosted on G2.com.
There are some out of the box items that are not quite intuitive. For example Review collected by and hosted on G2.com.