The ability to have alerts generated for any changes in our system or user accounts - this allows us (and others) quick access when needed without having an alert pop up every time something happens! It's also very easy/quickly setup so we can add new users quickly as well with little effort required from IT staff members who may not be familiar w ith setting things like LDAP servers etc..
I would love if there was more flexibility around adding custom fields but overall great product at reasonable price point!! We are solving issues related data loss by preventing accidental deletion / overwriting files which could potentially result due loosing important information stored within them.