As a super star subscriber I would rate Volumio 5 stars if I could USB connect to my Burson Conductor 3X DAC. I am also annoyed that as a super star subscriber I had to pay for the upgraded app not a lot of money I know but it is the principle remembering when I subscribed In the blurb we were all promised Muilty Room capabilities which we are all still waiting for (unless I have missed something with regards to the Muilty Room). With this in mind I do question why I have remained a super star subscriber, were is the value for money???? I would very much appreciate a response to my questions.