I’m based in Europe i think zooz is only us frequency, i have tried fibaro, qubino, aeotec and others. At the moment the drivers dont support power metering it is not exposed in control4 but relays are working if that was your question. From the experience so far i can tell that 95% of the devices that i tried are working, the question is how well they work :). S0 devices if you activate a scene with 5-6 lights it knows to hung and sometimes takes 5-6-10 seconds to finish. S2 devices on other hand are working great i have around 15 lights and scene is finishing in 2-3 seconds. But at the moment i have tested only with one model of S2 device Fibaro Double Smart Module. The other that i have are not s2.