Xiaomi. Use hub or not?

the one good thing about zigbee2mqtt is you can control the channel zigbee is using, this way you can keep the wifi channel (if using 2.4g) far away

i am still playing with the zigbee2mqtt and will progressively move over if stable enough, i already have a couple of osram lightify bulbs on it and it seems to work fine

I think it’s network instability. I had a crappy wifi router with frequent disconnects and the Xiaomi sensors would frequently become unavailable. I changed to ubiquiti wifi and now everything is very stable.