I am happy to hear that you like the QSpot.. Your feedback is very valuable so that I will be able to continue to improve it. The problem with playback sometimes stopping is known, it is related to libopenspotify and it is under active investigation. It seems that it happen more frequently on slower internet connections (e.g., 3G). What connection type have you been using when you have experienced problems? And is a re-start always required?