A lot of power at home and at international outlets

As a frequent traveler with frequent stays in the USA I was looking for a charger that provides at least a minimum of three USB ports, 2 A charging current supplies and is used internationally. Not only that it is a nuisance, always having to carry multiple chargers, are in many hotel rooms (accessible) outlets in short supply.

The system S charger fulfilled all my desires, at least on paper.

The service was - as with Amazon usual - very quickly, the contents well packaged. The included adapters for Europe, the UK, the USA and Australia ??? are easy to assemble and take relatively little space. Convenient for traveling, where you are confronted with different outlet standards.

After I read that there were problems loading some customers, I have the unit subjected to an endurance test: An iPad 3 + three iPhones connected and turned on, the display on all four devices.
Special iPad requires a lot of charging current, otherwise it will discharge with the monitor on, even if it is connected to a (undersized) charger, such as the original Apple iPhone charging plug.
On System S charger every four connected devices were loaded reliably. That it acknowledges such agony with increased heat generation, was forgiven him.
I left the device overnight (with display off) on the charger plug in the morning indicated all 100% capacity.
On my last USA trip I then tested the good piece with three connected Apple devices (2 x iPhone, iPad 1 x 3) and a Nokia Lumia to a 110 V outlet. Again, all units were fully charged overnight.
After these two endurance tests, it is clear that the charger at all - for me - relevant conditions provides at least the promised 2 A.

Why is there still only four stars? Because the device relatively clunky and the glossy surface is sensitive. Especially in a part that is designed for traveling, one could have the better designed. Interfere Wen scratches, therefore should get equal a protective case - but then the missile is still a little bigger. Nevertheless, thumbs up and strong buy recommendation.