I have done a demo in my own room comparing Cambridge Stream Magic, Qobuz Connect and JPlay. I have done similar demos in other systems.
My quick learning is that Qobuz Connect sounds better than the software used by any streaming manufacture. I also feel Qobuz Connect consistently sounds better than Roon.
In the demos I have done, JPlay sounded better than Qobuz Connect. Not enough for me to bother switching, but easily enough to say with confidence that if you really want the best streaming software, I would strongly suggest you explore JPlay or other 3rd party software solutions beyond Roon.


@bosssound