Does the basic - works the equipment - but won't stay connected to WiFi (eero 6). This is especially annoying since I have a Ring security hub & eero 6 router combination unit, and the Honeywell T9 is a Ring partner of some sort as they sell the thermostat on the ring-dot-com site. Once I put eero into "Troubleshooting" mode - it temporarily stops the 5Ghz radio - it connects for a while, but inevitably disconnects at some point after the 10 minute "Troubleshooting" mode ends. As there is not a way in eero to create a separate SSID for the 2.4Ghz and 5Ghz radios, I guess I need to "troubleshoot" anytime I want to use the Honeywell or Ring apps to control the thermostat.
Very easy to install, connect to the Wi-Fi, and link to your phone through the app. Very modern, clean look on the wall. Would definitely purchase this unit again.