I don't think it's always true that Roon lowers SQ. It probably depends on the situation like everything else in audio.
My Rockna Wavedream NET transport has a multiple options on board but Rockna recommends Roon. I've dabbled with the other choices and find Roon superior all around. Not sure how that translates to other devices though.
Switching from Roon is also very dependent on your ability to make sense of a different user interface. Like switching from Windows to Mac to Linux. Some people can just do it easily, others hate the changes and switch back. Even though Aurender's Conductor is better than it used to be, you might still find it unappealing to use. It's a very personal choice in my experience.

