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/10D8Q0w8gwMqOvciDDFZSBuRKxFpGsdwM0D5Q... https://www.youtube.com/watch?v=Kscsp0YS7nw&index=35&list=PLqjPa29lM...