I live in "silicon valley" the issue is plain noise from every house having Wifi, the lots of land are not square which causes houses to be longer in one axis so you're forced to have a noisy Wifi part of the house.
There are only so many Wifi channels, is part of the problem.
In reality the Eufy implementation works well enough, I program the smart plugs to turn on/off at pre-determined times and that works, it is the use of when I want to communicate realtime with the plug is where Wifi enters the problem.
Thanks for the offer. I am sharing the real world issues with smartplugs