Google Wifi is the Next generation in home wifi. It connects to your current internet service providers modem and expands your homes wifi. Google Nest Wifi's biggest advantage over traditional routers is its ability to create a "mesh network" in your home so that no matter where you are in your home you have the best wifi signal, without having to switch networks like you do with traditonal signal boosters. Google nest wifi is recomended to anyone with a larger floor plan or someone with a lot of smart home devices. 
 
The wifi points also double as a smart speaker so you dont have to buy a smart speaker for the room they are in!