The app works great consumed according to my two Battery Apps and the Android built-in battery evaluation no significant power and has a very nice look, the longitudinal cross as beautiful spread across the screen.
As a "clock radio" in the function dimmable display should however - specified by the manufacturer also - a power supply to be connected, because the display constantly consumes electricity.
The whole operation is very intuitive and the selection of a favorite song easily. The program finds the stored on the memory card and the internal memory automatically tracks and man they can scroll easily.
The alarm goes off on time and the phone vibrates, lights and plays the desired title. This looks good and even fun morning :-)
All in all a great program that I can fully recommend.