I have one more in the living room. One in the formal room. Three more in the upstairs bedrooms. And another four in my studio. I have moca adapters connected to switches at every coax box in the house. Everything is hardwired. I only use wifi for my phone.

I think one of my favorite features is that I've routed pulse audio between all of the devices, so I can send audio from any one device to any other, plus I have an mpd server for music with a separate daemon for each person in my family, so each can route music wherever they want.