When setting up office 365 integrated there should be some way to import the UPN and or email address in some way that is useful. At present the "People" assets are created and the email address is imported, but not into a field that is accessible via the GUI.
This makes it pretty hard to find a person based on email address if it isn't obvious who it belongs too.
I would personally like to see a feature that allows mapping of selected fields from an integrated to fields of an asset. The cards are nice, but doesn't give you much ability to search or filter assets.