I took ARTA several years ago. It's essentially a merge of his defensive pistol and urban rifle stuff and reapplied in context. Executions seem to vary by location and students, based on their comments it's been tweaked over time. Mine included a night shoot. If you've taken the DTI pistol and rifle class, you've got the basic info. If you've not, ARTA would be a good way to grab John's pistol and rifle essentials. That takes nothing away from the classes, just a description some may find helpful.
No mention of Vicki in your AAR. Was she there?
If you've not trained with John and want to, you're running out of time. Along with several other originals like him.
I like, use, and teach John's tape loops and guidance on interacting with police.