I got a WiFi mesh system for Christmas, and wow, I can't believe I never did it sooner. No more worrying about two separate WiFi networks, and if you're on *this* side of the house, you need to make sure you're connected to network A, and if you're on *that* side of the house, please connect to network B.
Now there's just one network and full signal no matter where you are in the house or garden. :-)
I also got two 1Gbps Ethernet switches, because the mesh units don't have any spare (our old routers had 3 each, which was never enough anyway), and I still maintain that Ethernet trumps WiFi for speed, latency, and reliability, and if I can connect a device to Ethernet *or* WiFi, you best believe I'm going to prefer Ethernet.
The network in general is much faster now too, because the previous routers only supported 100Mbps Ethernet (oh, and of course the mesh units connect to each other via cable, because what would be the point otherwise?). :D



