I tried Quobuz and dropped it after a week. Yes, it sounds pretty good. But for my tastes, there were many holes in their catalog. Some I could live without, but others I am not willing to sacrifice.
And if you are using the Bluos app, you cannot index your music. All albums are in the order that you save them. No alphabetizing by artist or album.
Now if they can resolve these two issues, I will come back.
Oz