catastrophic! 30

the button that is used to increase or decrease (time, date, volume, ...) does not. It only increases, thus the ringer volume is still thoroughly what my wife wakes up when it rings. The support gives me more news for 3 weeks!
Apart from that it's just a motion detector that sounds qd you move in the range of 30 minutes prior to the selected time. A bit expensive for such a simple function.