Yep - the Eeros came with the house. They’re kind of annoying, needing the mobile app to configure them. But they’ve been reliable for 3 years now. So I’ve stuck with them, even buying a couple more, refurbished from Amazon.
Yep - I guess Drop is slang for a socket, which is actually named an “RJ45 Jack”. You’ll see it called that.
I have two drops in my 12’x12’ office, but I didn’t think to get one in the floor straight to the basement. That’s also on the list, to hide all the wires. 
You can see one of the the ethernet ports on the left wall. I have a piece of furniture there now to hide the wire.
There’s a Mac Mini hidden under the Ikea desk surface, and the shelves on the wall are Ikea too:
