Using this, I now have smart control of my dumb kettle. All I have to do is leave the zwave switch off at night, fill the kettle and flick the kettle switch on, then in the morning I say (from bed), “Hey Google, turn the kettle on”, and the zwave outlet switches on and the kettle boils 
What I have struggled to get working has been the automation to announce via Google TTS over the Google Home that the kettle has boiled… issue getting a fast response of wattage from the outlet 
I too have automated lights so they turn on and off as I walk through the house, and automations to control my amplifier based on the TV turning on or music starting from my ChromeCast audio