Easy to set up and use—couldn't be simpler.
I use this with our water heater to save energy and reduce wear and tear. With only two of us in the house, I didn't need our 70-gallon gas water heater to run each time someone used the hot water. In addition, we have Time of Use metering, and the water heater doesn't need to run during peak electricity rates (a four-hour window during weekdays).
To address this, I use two schedules. One (for the module) to have the water heater power on for an hour during the off-peak rate (early morning), and another (for a scene with only the module) to turn on the power for an hour during mid-peak rates (right before peak rates hit).
This has been working great, and we can't tell that the water heater is powered off for all but two hours a day. If we have guests and need more hot water, It's easy to turn the power on via the app or Alexa. As a bonus, turning off the water heater when we go out of town is as easy as modifying the schedule in the app.