As above, I have a mixed setup. Playbar replaced my 5.1 so I dumped 7 boxes from the living room, much more space. Sounds OK, convieience is fantastic.
For my proper listening I have coax out from a Connect into an amp and speakers.
Also have a stand alone player which is nice for ease of use and sounds OK.
So it can be HiFi, or convenient or both. Where it really wins is multi room and ease of use, the sound quality is up to you and can be as good as you need it to be.
I love it, have refound my love of music. Running the beta software on Android and it’s looking great for the future.