Hello!
I have my installation in the garage and at the moment I have a Sonoff stick. It works more or less fine considering there are a lot of walls. I have tried to solve it by filling the house with sockets to act as routers. Right now I am using ZHA. I’m interested in a standalone hub that can connect to an ethernet port in the middle of the house and expose all the functions of the devices. Something like the IKEA hub but would work with any device.