I had reliability issues with Philips due to memory limits of their hub. It becomes slow and less reliable above about 50 devices. That sounds like a lot, but e

I had reliability issues with Philips due to memory limits of their hub. It becomes slow and less reliable above about 50 devices. That sounds like a lot, but every light switch and motion sensor is also a device. So in a medium sized house you exceed that limit. The hardware however is very good. Replacing the hub with zigbee2mqtt and a good USB Zigbee transmitter solves the issues.