Roon comparison using the Interchange:
Roon has a "softer" quality than my reference app Linn Kinsky, but very close in sound quality. Roon beats Jriver by a good margin IMO.
If you must have live acoustic guitar and percussion, Kinsky is the ticket. Most customers with the Interchange will do Roon I think because of the user interface and streaming interface.
Linn Kinsky will not stream Tidal or Qobuz. Linn Kazoo does streaming and I will compare it's sound quality soon I hope.