I have just one iMac, no laptops or computers - two iPads that tend not to have music on and two iPhones that do. I also have an Apple TV and shortly wil have a B&W A7. I'm not particularly bothered about the syncing of devices as they all get plugged into the iMac on a fairly frequent basis. I understand that my music library is stored in the cloud and where quality is low, it is replaced with a higher bitrate version. My first Question. How do I find out what the current quality is of my music? Two. If I can find out how good/bad my current tracks are, what other benefits will iMatch offer me. Three. Is it worth the money? Grateful for your advice.