Buzzing Power Supply: nil, absolutely nothing to hear.
For bright display: The display dims very fine in the automatic setting. That is, if the room is completely dark, the alarm fades down also very strong. Once even a bit brighter in the room dims up and also the alarm clock.
For me, absolutely fine. Even the alarm One / Off button is lit, I think is not necessary, but does not hurt.
So much for the frequently criticized points.
What's really important in a clock radio and how is the Philips?
1. DAB reception: Has work right away. Clear reception without noise. I live but also in the DAB core zone.
2. Sound: Is properly for a clock radio. The Bass function, however, is useless. You also do not need.
3. operability. Importantly, these are the keys palpable and discoverable without looking. The keys, which are located on the top of the device are increased and palpable. One would have the keys to but separate more clearly. The volume control on the front I find too smooth. The alarm volume on the radio can be set and stored. While raising the volume is slowly raised to the set value. That's well done.
Conclusion: I'm glad I bought the device. Very good, I like the snooze function that you get per press of the snooze button every 5 minutes break, this is therefore added. Only the lack of second alarm is a bit unfortunate.