I was pleasantly surprised by the small size and the brightness of the LEDs. In a meter from the window at right angles, for example, simply place it on the ground, it does not even against a white wall lit and already it looks from the outside, as if someone keeps a movie night. Coupled with a timer runs the fine. The twilight switch I have not tried yet, but is too uncertain to me, because I want to have fixed times. We have the part, for example, are in the bedroom, and what if it turns light at night time? Remember the part then it's day and as soon as you switch off it, it would have to start? ;-) Along with other anti-burglary measures and deterrents one is the part but certainly very well placed.
Significant criticism: the light sequence reminiscent of a very to action films, lightning occurs far too often in succession, seems a little unrealistic and on the other there is contrary to the description definitely only one short sequence of measured about 40-45 seconds, the steadily repeatedly. With long-term monitoring can therefore the "fake" but suspect. In practice, one reads at least, but it seems to be so that burglars (tied) to explore objects usually no longer, but choose quickly and spontaneously. And if several houses are next to each other then, I hope that our fall out due to lighting effects.
I would buy it again, but maybe see if another device offers no fewer repetitions in the light sequences.