Roon appeals to many because of its cataloging/discovery/multi-room features which are awesome. I'm not arguing with anyone on this.
However, I have a somewhat revealing system and after a pretty thorough audition (using an older Windows PC for the core, which I admit may have not been optimal) I did not feel that Roon offered any improvement in sound quality. I am presently streaming Qobuz using an opticalRendu with mconnect.
Roon did play my favorite radio station (KUVO), though. When I want to listen to radio, I switch my DAC to Bluetooth and use my Android phone to stream the station from their app, my phone has an LDAC feature which sounds pretty darn good.
P.S. I think Qobuz offers some suggestions for new music that are pretty good. So does Stereophile magazine. I get a lot of suggestions reading the equipment reviews (when the reviewer references a track used to audition a component), as well as the actual recording reviews at the back of the magazine.