I previously tried switching from the hue hub to conbee zha and found that experience subpar, I even updated the stick to the latest firmware which did help, but it still was not nearly as good hue hub. The main downsides were occasionally a button didnt work, but also the popcorn effect were you turn on a group of lights and they dont all turn on at once, like one or two may turn on a bit later etc. Groups of lights did not behave well and also the hue motion sensors did not work quite as well then with hue, I even tried the blueprint someone made for zha which helps, but still not as good. Ive heard the sonoff p dongle i think it was with zibgee2mqtt is a better experience, is that solid? any experiences with that? did buttons work consistently? do groups of lights behave well?