Design errors:
The large pushbutton above is for the light and at the same time for Snooze (Snooze). Embedded therein is the green pushbutton switch for switching on and off of the alarm. So on / off switch and light and slumber are actually a button, that's bad.
Follow:
In the following situations you may inadvertently switched off the alarm: Lichtanschalten in the dark and when you press the snooze button. Those are the only interactions with an alarm clock in the night or upon awakening.
Evaluation:
You have to be wide awake and the alarm light in use to avoid accidently switching off the alarm. I had the alarm clock for three days and do not know how far the alarm sounds, because I had it off by mistake before the alarm time.
A solid design solution, though not as fancy is the Casio PQ 31-1EF. He makes what he intended.
The automatic time setting via radio only works very slowly and in some situations not (should alarm to stand at the window). Then so you can not leave, for example in the transition to winter time.
Recommendation: Do not buy this alarm clock if you want to be them actually aroused.