I admit, I bought this largely because of the price. If you're upgrading lots of switches in your house to WiFi capable, you know you're in for spending some money. Averaging 10 a switch is way better than 30. I bought one -pack, and then immediately bought two more. Here are my take-aways: True 3-way functionality. I've read reviews for other devices that imitate 3-way functionality. I had existing 3-way switches, so I need to wire up to a couple traveler wires and this allows you to do just that. One issue I had was in using two on one circuit: if you name two switches "Hallway Light West" and "Hallway Light East", telling Okay Google to "Turn on/off Hallway Light" will result in the light NOT changing state because it's trying to activate both switches at once. Mind your naming and you can work around this. Appearance is good, although you are limited to white. These have a little red lighted indicator to tell you the device is on, which at first seemed redundant because the light is on when the lights are one, but when you have a bulb go out, it's nice to know the switch indicates the light is supposed to be on. This switch does not have an up and down input, like the rocker switch they mimic would imply. You tap the 'down' side of the button and it toggles the output. This is nice if standard 3-way switches make you a little batty because they can be up when the light is off, or down when it's on. The only indication is the red light, and it accurately shows red when the circuit is live and off/not-red when the circuit is broken. The units run a little warm. Like you walk up and press the button and you notice the heat. I haven't checked yet to see how much power it draws while inactive, but it's enough that you're producing heat, which is wasted energy. If this is a concern then you might want to look at another unit. It bugs me, but not enough to keep trying to find the perfect switch. The included hardware kit, some screws and wire nuts and a faceplate for each unit, is packaged well and none of mine were missing pieces. I actually used WAGO connectors, but having the included wire nuts is a good fallback if you're not providing your own. I also installed many of these in multiple-gang boxes, so I won't necessarily need the faceplates, but not needing to buy them if you need them is a bonus; at this price point I would've understood if they didn't include them. Note that the faceplates snap on, and they're the soft "unbreakable" plastic. So you don't need screws, unless you do manage to break the faceplate snaps, and then you'd need to go buy replacements. They only connect to 2.5GHz WiFi; not 5GHz. Not everyone realizes the difference, so if in doubt, have a friend who knows the difference ready to help you. The app is okay, but you're probably going to want to use these with a Google or Alexa assistant and that connects through a different app anyway. Integration was smooth as far as that goes. Bottom line, I bought these because they were cheap, and as such they exceeded my expectations. They're actually a good purchase as well.
