Hi Michael,
The largest application of Attribute Assistant here at Douglas County occurred during the creation of our county-wide Address Points layer. I still use it regularly when updating both Address Points and Street Centerlines.
I tend to find the most value in Attribute Assistant's ability to drill down through multiple, spatial layers.
For example, when I change the geometry of an address point, Attribute Assistant runs rules that assign values for PIN, Municipality and ZIP Code.
Beyond Addresses and Streets, I fall back on Attribute Assistant occasionally for customized workflows. I like the flexibility of the dynamic value table in applying value methods however I need them. The ability to generate unique ids is a big deal, too. Several of the departments we work with have expressed a need to do just that.
Anyway, I've also attached our Dynamic Value table for reference. Hope it's useful to someone!