It's very unfortunate that this is true. I turned off Roon this week and have been somewhat blown away with how much the sound quality improved. The level improvement as one audiophiles easily fork over dollars to achieve. I really do miss Roon though - but not the UI. Roon Radio is my favorite part of Roon as it has introduced me to so much unfamiliar music.I have to say that if SQ is your main focus, Roon wouldn’t be my music player of choice. Simply too great a SQ sacrifice in order to get the better UI
As far as the UI, iPeng is the control app I'm using presently. It's pretty much the bare minimum as far as browsing a music library. It's a pretty huge step down from Roon as you'd expect, but a good chuck of that gap could be made up if developer resources were applied to the task. I'm very eager to see what Innuos delivers as part of innuOS 2.0. Nuno said it has been under development for two years. I hope a lot of listening tests went into it along with some great developer innovation. Fingers crossed.