I use dimmer switches, on/off switches, lamp modules, on/off modules, outdoor modules, thermostats (5), keypads, fanlincs, & motion sensors. Plus it’s interfaced with Elk gold and communicating nicely. I like the ability to program everything including turning off the HVAC in the event of fire alarms, turning on all lights to alarms, etc. Amother important issue is for everything to run locally (no cloud) and, as you said “the direct association between devices across the entire ecosystem and not just among devices that are in close proximity to each other.”