I did get the one with three nodes. I will eventually add more nodes as the kids start to use more wifi in their rooms and such. Google made them just so easy to use - its kind of like cell service towers in that the Google network figures out depending where you are in relationship to the nodes which one will work best and at what frequency. I have yet to have a problem with it and I use several sonos connects, google chromecast for TVs, amazon firesticks, two amazon echos, etc. Before the router change, things would work but not all the time like they were supposed to and now they do. EDIT - I sound like a paid shill for Google but I have no affiliation, etc with them. It has just been nice to have wifi that works.