Id say this app is about 90% good, but there is one annoyance that is really bad. It defaults to Main zone when the app is closed, so adjusting the volume in zone 2 (where the app would be most useful) sometimes requires a few clicks to get there. The other annoyance is the "search" function: it needs to search sub folders as well to be of *any* use at all. Id give it 5 stars if it werent for these two issues.