You mean Extreme just too good for Nu Roon, will not be able to not highlight it's deficiencies? Other streamers, poorer SQ "slips" thru, unnoticed?
When I listen to music, I sit down, hit the standby button, select ‘My Music‘ or ‘My Apps/Favorites‘ on my iPad, click an album cover, close the iPad and my eyes and become completely immersed in and swept away by the music. For that experience Roon offers very little value, so I’ve never been willing to sacrifice the SQ or pay the necessary extra to compensate.
IMO, an Audio SW Development Engineers’ quality process must always include a careful listening evaluation to ensure that future revisions enhance sound quality. For me a product that sounds worse with time is not something I’m in the least interested in, as it makes future dissatisfaction a certainty.