Definitely going to deploy @[email protected] at some point, and a well supported thermostat, after our Honeywell TCC (that came with the house) suddenly removed the functionality to adjust the schedule and fan settings from its Android app (and the iOS app never supported that). From the backend since the app was not even updated!
Would be nice to have the ability to add additional temperature sensors anyway.
I switched out three Honeywell TCC thermostats in the spring with Ecobee. All in all, the Ecobee units are great and work well with HASS. I use the cloud API integration and have some automation that kicks set-back in a bit quicker than 2 hours like the t-stats do natively when we are out of the house.
The only regret I have is I bought the higher end model, but should have bought the cheaper ones - I don’t (and won’t) use the built-in Alexa, don’t need the C wire kit, and the VOC/CO2 sensor is garbage.
The remote temp/occupancy sensors are great and do help balance out temperatures when the t-stat doesn’t cover all rooms very effectively.