Why would I need Roon?

It has sort of been mentioned here but I want to make it clear what I think is the greatest advantage of Roon is that it is ONE consistent library/interface for ALL of your music whether from streaming services or files on your hard drive or rips in your streamer.

Then... controlling/playing to multiple zones (roon endpoints) in sync.

@pratorious  BubbleUPnP will do that for $5.  Or free, if you don't mind some ads.

I got Roons Core running on and SGC Sonic Transport with a Bryston BDP pi endpoint.  Solid setup. But the Bryston Pi MPD SQ beats the paints off Roons.  Both stream Qobuz and playing Radio Paradise FLAC.  Paid for a years subscription of The Roons and if I can't find a tweak or RoonLabs dont come up with an enhancement I am for sure not renewing my subscription. Might still hang on to the ST cause I can play around with BubbleUpnp.

Benefits of Roon:

1. Let’s you mix your collection of personal files with hi-res streaming services like Tidal and Qobuz
   
2. Let’s you transcode / upsample music from streaming services  (for me transcoding to DSD has sonic benefits)
3. Roon Radio will basically give you lossless Pandora
4. Lots of streaming endpoint clients
5. MQA decoding in software if your DAC doesn’t support it natively

Thanks for the additional information.
I’m probably being cranky because I feel like every time I turn around there’s another *subscription* on my visa bill, and this adds on top of other services.
Ok, got that off my chest — I’m very prickly when I think I’m being nickel-and-dimed, but you’re truly evincing some major benefits to Roon. Seems worth a try.
That said, the alternatives look interesting, such as the Bryston. But…I just bought a Node…so…[scratches head].
Again, with the Node, I plug a thumb drive in the back and I have a lot of files right there in the player.
But, as folks have said, the interface is not as good…
Ok, I need to research what you’ve all said. Been driving all day.