All six of my xFi Pods are online, setup was no problem and all six were easy to install.
I am currently sitting 2 pods away from the main gateway and all the devices in this room are still connecting to the main router (which is rather far and the connection is terrible).
I check all my pods in the app and it shows 0 devices connected to all of them.
Just a follow up if someone else finds this thread.
The pods never worked, returned them (which wasn't easy, never recieved email). I had to go to the store to return them.
I went with Google Wifi and will never look back