Most likely you are viewing this video because you have a signal or slow Wi-Fi speeds throughout your home, a mesh system like this might be a good solution to improve your Wi-Fi signal and speeds.
One thing to note!! this mesh smart router comes with only one Lan input so if you are looking to have more than one ethernet cable this is not for you, this is for someone who is looking to extended their Wi-Fi range and if you are looking to connect one device lets say maybe you console or PC. This also depends on your modem if you have a modem that has multiple ethernet inputs inputs and you are just looking for a slow Wi-Fi fix this mesh system will work fine.
