Fairly easy to install. First one has a learning curve but the others were simple. I recommend a multimeter to help determine which wires are hot and which are traveler. Switch is bulky, and I did not try to put more than one in the same game. YMMV.App setup was easy on iOS. I had several other devices already using the Smartlife app. These switches were discovered in EZ Mode in about 3-4 “clicks†(no manual setup needed). You do need to have a 2.4 GHz WiFi, because it won’t communicate over 5 GHz.Alexa integration is easy. With the Smartlife skill already added to my account and signed in, the switches were added automatically by Alexa. I didn’t have to do anything, and I was able to control the switches via voice.There is no motion detection from what I can tell, so I am not sure why that shows as a feature.