Drayton thermostats

[MikeF]

I'm looking to move away from my Hive Heating thermostat, as it relies on a hub and Internet connection, to something which I can integrate with Domoticz and control locally. I've noticed that the Drayton Digistat +2RF Thermostat is shown as being supported by RFLink, and that a number of people on this forum have reported success with it.

Can anyone please summarise what functions of this thermostat are supported through RFLink and Domoticz, and also whether the Drayton Digistat +3RF Thermostat is supported?

Thanks.