If you haven't made a hardware decision I'd also take a hard look at Ubiquiti's Unifi line. They take a little more setup but offer a lot more functionality and future expansion.
I personally found the interface a step up from Asus/Netgear/etc.
The best mesh network though would be through a smoke alarm setup. Then you could do backhaul over the power line and then you'd have WiFi everywhere. It would work really well for newer construction where hard wired smoke alarms are mandatory.
Argh, please don't proliferate ethernet over power lines. They cause horrible RFI by turning every unshielded power line into a broadband antenna[1].
[1] https://www.rtl-sdr.com/showing-the-hf-interference-problem-...