I know I may be late to this, but I have finally started using some #zigbee - a rather nice dimmer from Repenic. I generally stick to MQTT, and using FireBrick as a broker. Works well. I use with a lot of tasmota flashed devices over WiFI. Now, I have a zigbee2mqtt box and it has worked to link zigbee dimmers to MQTT. I'll see how it goes. The mechanical build quality seems excellent on these. P.S. James says buy from here: https://www.repenic.com/discount/HIWTSI