Ideal for home workers!
Why heat every room when maybe only one or two are being used in the daytime, and a different room in the evening?
A smart radiator thermostat, fitted to all available radiators in the house, will save much, much more energy than a smart thermostat alone.
The central control panel allows very straighforward but detailed (to ten minute segments) setting of the schedule for each room, and also links to the cloud so that a mobile phone app can alter the settings.
All of the above can be done on the app.