Frustrating - more often than not painfully slow to respond, frequently sticks with a green circle going round. When pressing to add to play list mainly unresponsive, then adds the song multiple times, but also sometimes just doesn't add anything and freezes on a black screen. Having said all that, the range and number of tracks available is superb - haven't yet been unable to find a song I wanted to listen to. Just a shame I have to go through such a rigmarole to get anything to actually play.