+ Brightness: It is clearly brighter than a 60W light bulb, therefore the 75W bulbs equivalent are realistic.
+ Dimmable: I have tested the dimming. The LED does just that with without hesitation, no flickering.
o color reproduction: The light source has a slight red tint in contrast to incandescent bulbs or halogen reflectors. The light is visible artificially but not unpleasant. Classify between bulb and fluorescent tubes.
- Switching time: Philips is applying this Bulb with "When you turn immediately light". This is simply a lie. It goes for a cold start, a time of about 500ms-800ms (estimated). Is it already 'warm'-run halved this time before the LED lights up. But then in full luminosity.
Addendum (03.03.2013): The switching time is now slightly lower.