It would be nice to have a way to control user permissions in a central location that didn't require remembering which folder a user actually had permission to. As far as I can tell, there is no way to do a general search to see where a specific user has rights.
I have a situation where we have many folders shared and an employee left the company, I am having to go through each shared folder to see if they has setup any type of access. This is cumbersome and seems counter productive. If there was a way to search by user and then have a display of all folders they had access to and then be allowed to modify the access from this screen, it would make the process much more simple.