I recently installed 4 smart dimmer switches from TreatLife in my home this past weekend. The one that will get the most use is the one in my dining room that I can now turn on and off and set brightness levels with my voice via the Alexa integration. It's no touch which is no joke in these pandemic times!
Installation for these switches is generally pretty simple. What can make it complicated is the existing wiring and/or limited space you may have after removing the existing switch. Remember, these wifi switches do require more room that "dumb" switches. That may make it a little challenging to install. Despite the challenges, I've never had an issue getting these done.
I've also included a video to demonstrate the installed product in use!