Here is what emerges:
On the design side, I find that this charger is aesthetic, compared to what I had before ... Generally cigarette lighter chargers are more practical than beautiful. For once the two come together!
In terms of size, this charger is smaller (in height) than standard cigarette lighter chargers but a little wider, this allows you can connect 2 USB cables above. A good point is when many want to charge his phone or even load a gps in parallel during long trips ...
Always Aesthetics aside, a blue light IN USB sockets can see when connecting the cable even in the dark ... In addition to the practical side, it gives a nice effect.
I had read in the description: "No lights LEDs to avoid distracting you while you drive on the road." So it heckled me, but once trendy taken, we no longer see the lights .. . Promise Fulfilled.
Efficiency side, I tested the charging my iPad since this charger while since my old charger, it does not charged and indicated "No charging in progress", with it the burden works! Even with my smartphone parallel load.
Finally, I read another comment that the light was on this charger even without contact. For my part, on a Clio 3, once the contact off the charger turns off too ... So no worries on that side.
I do not see a downside to this, even the price is more than correct given the product and its finishes.
I recommend this USB charger which is essential when you have multiple devices to plug in the car! (Within the limits of the power of the cigarette lighter of your car.)