I have had a Lumie bodyclock (£100) for 6 years and my husband has been using it on his side of the bed for a couple of years and it wasn't effective in waking me up properly from a distance. I decided to buy another dawn simulator and wanted to try something new (also the special price of £66 was appealing!).
I agree with Cazzy's review in that the buttons on the top of the light are hard to reach and you don't know what you are pressing (although you get to know the feel of them). I have found it to be more effective in waking me up than the Lumie as I am normally awake bfore the back up sound comes on, whereas, with the Lumie, I usually needed the back up beep. I also like the extra sounds on the Philips, particulary the birds and the pond noises! The waves make me need to use the bathroom!
Since I have 2 brands of dawn simulator, I have noted the main differences between the Philips and the Lumie:
1. Lumie can be set to come on 15,30,45,60 or 75 minutes before the alarm, the Philips is 30 mins and cannot be changed.
2. The radio and other wakeup sounds on the Philips as opposed to the back up beeper on the Lumie
3. You can set the brightness of the light (which will depend on whether you use a 75 or 100 watt bulb) and the level of the sound, whereas the Lumie cannot.
4. Lumie has a frosted glass dome which is very sturdy, the Philips is more plastic and not as sturdy.
5. You can dim the clock display on the Philips whereas the Lumie remains bright.
6. You can adjust the sound level of the back up alarm on the Philips which you cannot do on the Lumie.
7. The Lumie has a fade down option (the light goes down gradually as you fall asleep) whereas the Philips does not.
I do like both dawn simulators, however, my preference would be the Philips as it is more effective in waking me up. Definitely a must for the winter.