Julien, Max, and I did a 20 min presentation at the State of the Map US conference in Seattle:

Slides & Video:

https://docs.google.com/presentation/d/10D8Q0w8gwMqOvciDDFZSBuRKxFpGsdwM0D5QcBFmTyA/edit#slide=id.p

https://www.youtube.com/watch?v=Kscsp0YS7nw&index=35&list=PLqjPa29lMiE3eR-gK80irr3xdUiRbIMeg