First about the product: It's awesome, I think that it might be best Zigbee coordinator at this moment. The manual is really good and it's really well supported by Zigbee2MQTT project as well. I had some questions to the support because I wanted to move my existing zigbee setup to behind this coordinator. The support was really fast and good. I was able to chat with them via Telegram directly (During Sunday evening!) what else I can wish for? Only neutral thing was quite long shipping time.