If you have not knowledge of electrical work save yourself a big headache and a lot of trouble and let an expert do it for you.
I have been doing automation for a few years now and this is, so far, the best product for the price.
they are fairly easy to install, no more difficult than a normal smart switch anyway. The price is very good compared to other brand that do the exactly the same thing.
The integration is very easy and the echo device detects the switch as soon it connects the your network. Of course first you will have to set up a kasa account and link it to your Alexa account.
Another think you have to make sure is that you have the neutral wire (usually white) on the box. Because these and all the smart switches are actually relays and they need to be powered at all times and the only way that works if they have both hot and neutral in the box.
As you can see from the pictures, if you install them correctly they fit and look good in a 3 gang box.
of course the inside of the box is pretty crowded do to all the cables and the fact that the switch has a bigger box for the wifi and relay but other than that this is one of my favorite switches so far.
As a matter of fact i purchased 4 more.
I just installed them a few days ago and i will definitely update this review in the near future
I am up to 13 switches and could not be any happier
My house is really smart
Updated on 6/20/20
I am now up to 19 switches and 2 dimmers and everything works great
I have a few minor complaints
The face plates are difficult to mount flash to the wall.
I am OCD about certain things and I actually had to modify the plates to make them fit the way I liked them
But that is just me
The other kind on minor i don’t know if is the skill enabled in Alexa, the Alexa app itself or what but all my devices are duplicated and it drives me nuts. I already went through all the troubleshooting and they still there. Hopefully it will be fixed