My home is totally made out of bricks, go check out my review, I get full bars/speed around my whole property, amazing how Netgear has managed to do this, whatever they do is the right way to do Mesh and this has been the best Wi-Fi I have ever had on this house, I get almost identical speed via Wi-Fi that I get via LAN, the Wireless signal is virtually the same speed I get when connected directly to the router.