Local automation behavior was viewed favorably because routines can still work during an internet outage.
Pros: comfort consistency, privacy controls
Cons: heat pump compatibility, included C-wire adapter
Best Smart Thermostats for reconnection reliability after outages
Outage recovery is a weak point in the limited reports available. One failed unit would not return after a power cycle, while another lost time and scheduling after power failure.
Pros: presence-based automation, simplicity
Cons: included C-wire adapter, reconnection reliability after outages