Easily the most function rich smart home heating solution including geofencing and weather adaptation, zoning and per-radiator control when purchased with radiator valves. Apart from slightly slow pairing with the bridge unit, installation was relatively straightforward. Instructions provided was good. There is a £2.99 per month subscription to use the full functionality, which include auto away (geofencing), open window detection.

Thermostat is very easy to install since I do not have separate hot water tank. Wire provided with internet bridge is too short, i had to use my spare ethernet and micro USB cable. Mobile application could have been better as there is no easy way to turn heating on/off in case you need to. Smart schedule works like a charm. Display doesn't stay on so you do not know what temperature is set to, only way to check is either pressing button on Thermostat or use mobile application. Geofencing / open window detection option is chargeable so I have not subscribed for it hence not sure about functionality.