What an absolutely cool little gadget! And why did I wait so long to try it? I started out by trying one of these switches on a ceiling light that is turned on when I first enter my house. It worked out so well that I've been replacing switches all over the house. What a marvelous invention.I now have these smart switches in all of the rooms in the main living area of the house. It's so cool to be able to control them with the Smart Life App combined with Google Home. I can control all of the lights and ceiling fans by use of a cell phone, or even more convenient, by just giving the voice command. I can't comment on it's use with Alexa, but I'm sure it will, but it works very well with Google Home. These are so convenient that I can't imagine not having them.The only cons are that they sometimes can take a couple of tries to activate them. The process is easy, but it just may not take the first time and may need to be repeated. Once integrated into the system, they stay connected to the wi-fi in the home and have never lost the signal. I have also experienced a slight delay in getting the Smart Life app to link up to Google Home when adding a new switch, but so far it has always worked well.I did have a problem with one of the switches. I had an extremely difficult time getting it to program. After several attempts it would work only intermittently. I contacted tech support and they agreed to send out a replacement, and it has worked perfectly ever since.The only other con is that they only work in locations that have the white neutral wire. My home does have the neutral wire in MOST locations, but not all. Therefore there might be locations that you would like to use this smart switch but can't unless you go through the work and expense of running a neutral wire to that location. This is not a flaw with the switch, it's just that it needs the neutral wire in order to do it's job. I would suggest taking off the light switch cover and checking to see if you have two or three white wires all connected together with a wire nut. If you do, you're fine.Other than that, this is one of the most fun and the most useful devices I've ever purchased. To anyone watching and not realizing what you are doing when you give a voice command, it might appear that you are talking to yourself, but it's worth appearing a little crazy when you gain so much in convenience. You never have to enter a dark house ever again, and when going to bed at night, you can turn off the lights all over the house without taking a step. Absolutely fantastic.
