I’ve migrated to ZHA and Sonoff USB Zigbee Plus P and so far the results have been good.
The biggest issue I’m facing is some devices like a signal repeater and ikea buttons are keep falling out of the network.
Especially the IKEA signal repeater is casing lots of trouble: I can add it easily but after some hours it looses a connection.
The repeater in question is located about 20m away from the route if measured in the indirect line of sight.