If you're looking for a reliable and affordable mesh Wi-Fi network, Amazon's Eero Pro router with two beacons bundle is currently down to just $255, which is 20% less than the usual price.
The Eero Pro router comes with two gigabit Ethernet ports and can put out Wi-Fi on three frequency bands (2.4GHz, 5.2GHz, and 5.8GHz) at up to 1,500 sq. ft. It can also control home appliances thanks to its Bluetooth 4.2 connectivity.
The package includes two Eero Beacons, adding another 1,000 sq. of coverage. You can use the Eero app to control the overall network or a specific beacon, for instance, to limit internet time for the one close to your kids' bedroom.