Thought I should follow up on these speakers.
We are totally impressed. Now that we know how to "tweak" them the 5.1 we get is amazing. There is not a lot of tweaking to be done, but the balance of sound can be adjusted a couple of ways. Much better than I expected.
One of the coolest things we found was listening to NFL football. We hear the game and announcers from the Playbar and the crowds from the speakers. And the crowd sounds are different from each speaker. Puts you right in the middle of everything.
Because we are Amazon Prime members we have access to around one million titles for music and a ton of books. And if we aren't happy with what we get there we turn on the TV and use the DirecTV music channels.
All in all we are very happy. She's already talking about more speakers for the bedrooms. I still want to get a sub-woofer first. If I could figure out how to get the one we have (wired) to work with the Sonos I'd be on it in a minute.
And we have learned that Alexa can be used as an intercom. "Drop In" is the skill. Friends have an Echo and two Echo Dots. They have figured out that if one of them needs help they tell Alexa to play Help by the Beatles in the other rooms at volume 10 (deafness on his part) so they know if they hear that song they need to respond.
Very cool.
Edit: Playing Assassin's Creed Origins with the speakers set up correctly is, well, interesting. I've had the crap scared out of me a couple of times because of hearing someone attacking from behind me. Life is good.