I have changed the install on my Mac mini from Roon to Roon Server. It makes noticeable improvement on SQ. I find the undesirable SQ characteristic (splashy, hashy, spitty see Sound Quality change with build 259) noticed with and after build 259 reduced by running Roon Server only. I find the notes also airer with less overhang. The CPU utilization is about the same, around 5% (when only music is paying with Roon and without touching the UI). Will do a more thorough tests and will post the findings.