The firmware/software for this product is not very stable. There are many 'WiFi Disconnects' and I know our internal WiFi is quite stable. Additionally, the fact that you can not control the thermostat from a Windows PC is not ideal. Honeywell only provides an app for Android and iPhone. We use an external temperature sensor with one of the thermostats to control a dual fuel configuration (we have 4 Honeywell stats in total). The thermostat doesn't show external temperature or we heat source it is calling for .... very weak!
Easy to connect wifi, nice display, plenty of options. Only downfall I see is the temp shown is actually warmer than it really is. Haven’t found a way to calibrate them, so knowing this I simply adjust my temperatures. Decent unit.