'Ive done several Eero systems. Even the newer ones sometimes need to be reset as they go off line. Regardless, they do work well but as you stated Tom, they aren't very high power and you need to use a lot of them to cover a large home. The present home I'm pre wiring also has an active back yard probably 60' wide x 30-40' deep (30-40' away from the house). I cannot place any electronics outside (this is coastal salt air and anything outside will fail within 18 months) so adding an Eero WAP outside is out of the question.

I don't mind using an Eero system but I fear I will only cover about 20' from the house in the back yard with Eero.

I guess I could add a hi power WAP inside on a different SSID for outdoor activity and have Eero take care of all the indoor.and routing.