the LightStrip works fine, but unfortunately as mentioned everywhere buzzing the supplied power adapter (unbearable for the living area).
After contact with the Philips customer support the power supply was free exchanged for a slightly larger / more angular power supply with 1 A.
Here hums and buzzes nothing more, so from me it 5 stars.
I have also informed the customer that in Amazon.com to mind. 54 customers complain about the noise problem. He wanted to report - that was on 21.2.2012.
(PS: The same applies to the Living Color GEN2 lamp because there's a firmware update)
bye