Great product, works straight out of the box. I have a crappy Optus NBN router/modem and really just wanted to boost my wifi signal(was only getting reliable wifi in front half of house). I simply used Optus web admin console to turn off wifi, then plugged in 1st unit to Optus router/modem via ethernet and rebooted. Then plugged in No2 and No3 at various points in the house. The system very quickly picked up all units and created mesh network. Eero provides a very good app to watch what is happening on your network . I have a single story 4 bedroom house. The wifi is now good from front fence to back fence, so am 100% happy with wifi signal. We have many internet devices and stream most media, there has been no issues getting our full bandwidth to any device needing it. I used the option to proactively push to the 5ghz signal (when device can use), which is now very strong throughout the house. I have trialled another unit that seemed to have a stronger signal, but was not as reliable or easy to install and manage, would not hesitate to recommend for someone looking for easy to use, set and forget mesh wifi.