I’m not going to discuss Roon here - the Roon essentials app, afa I know mainly used by ELAC, is a good way of accessing the great algorithms of Roon and large part of the functionality at an entry level price point. The app sometimes loses connection and can be a bit slow but nothing that can’t be fixed with a reboot or a new login. I’ve been running it for three years and wouldn’t miss it for anything except when I’ll be moving to the full Roon functionality