Reports from the user community indicate that the native apps, Sense with Innuous and Conductor with Aurender sound better than Roon. I concur with Aurender but don’t have experience with Innuous.
Aurender’s advantage is with Conductor native app processing path that stores data on a large SSD cache prior to playing it. This means cleaner playback and it does sound great. Lumin uses memory buffer, which is a similar concept but not quiete the same.
Innuos is not compatible with UpNp if I’m not mistaken. Which makes it impossible to use Tidal Connect or Qobuz Connect, or jplay. You’re limited to roon and Sense.
If you want to use Roon, I would recommend looking into Lumin, Volumio, Small Green Computer and even iFi Zen. Roon UI is second to none, but the sound quality is always second to native apps. And second to jplay in my opinion. May be the upcoming April 20 big release drop will address issues and sound quality…we’ll find out