131 devices and counting! Seems pretty solid at the moment. I'm using Z2m with a SMLIGHT SLZB-06 Zigbee adapter. I have this working over LAN. I did have a conbee2 stick on Deconz which was starting to struggle, so made the change to the stick above. One added bonus is that before, I couldn't send both brightness and colour changes to my IKEA lights at the same time (known issue). This now works fine. (https://www.facebook.com/groups/HomeAssistant/permalink/3374295472841799)