I have the charger and I am fully satisfied.
Besides a very nice design, with lacquered / glossy black, a beautiful blue line and blue LED, it is perfectly functional.
From the handling of this product, an impression of quality we, as confirmed when in use.
I tested it on all of my devices (Xperia Z2, Galaxy Ace, Moto G, CDisplay ...) and ensures the same charge as the original charger (I have not changed cables / de cables adapted to insert a current meter, but I used the amp pursuant play blind. The displayed values are the same between the original charger and RavPower charger).
The charge two devices at the same time does not vary the load capacity.
In conclusion, an excellent magazine that I recommend.