Good power supply at a reasonable price.

History - cheap adapter for comparison
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I had previously a cheap adapter for a few euros, the lt. Description should be specifically for the iPhone. Well, the iPhone (4) then turned up the virtual nose after 5 minutes and the adapter with repelled "not supported".
The Android phone my wife was more severe in the company. Only it is now so that the charged with the cheap adapter battery takes a long time for 100% and then collapses immediately. At the original charger everything works perfectly. So: Who buys cheap, buys twice ... Possible battery damage included.

The anchor adapter
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When unpacking it at a marked difference in the feel: The anchor adapter is compact and at the same time but also heavier than the cheap adapters. Feels good!
Then when you plug in the next 'wow' factor: While the cheap adapter more or less loosely tucked into the 12V socket, the anchor adapter is bombproof, because nothing wobbles. Infected phone and all is well. Fast charge, so it should be!.

I still can not write long-term experience, if the adapter was in use for some time, I will update this review.

So far, I can issue a full purchase recommendation.

Update 18/05/2014
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The adapter is now a few months in use. He has proved to be faithful companion, the inferior one original charger by the manufacturer in nothing. My old iPhone 4, the new iPhone 5S, a Motorola Defy, a Moto G - all can be so perfectly and upload in no time.

The adapter is only slightly warm to long operation (2-3 hours), a significant difference to Billigheimer which was really hot.

Already have a second adapter for Relatives bought.