I've been playing around with lots of different Zigbee coordinators to try and decide on which one I was going to implement in my new house. I really like the new Sonoff Zigbee 3.0 USB Dongle Plus!
Also, what a mouthful that products title is!
In this video I run through how to flash new firmware onto the dongle (using the manual process) and how to tie it all together with a full setup of the Mosquitto MQTT Broker and Zigbee2mqtt. I don't think i've said the words MQTT or Configuration so many times in my life!
What's your go to coordinator?