I received my pods and set them up Monday. Even when I have my phone just a few feet away (or closer) to the pod, I never see anything on the xFi app under that pod where it shows a device connected.
Today I did some testing in a room where I get very bad service. There is a Roku with a weak signal, and I get no signal at all on my iPhone (it switches to LTE.)
The pod shows it is connected and online. The Roku still shows weak signal, and the phone still says LTE even if I'm sitting next to the pod. I've unplugged the pod, I've reset the xFi system, and still no connection in that room.