The extra length of this cable (double that of the one supplied with Apple devices) makes is much for versatile to use. The original charging cable supplied with my iPhone wasn't long enough to plug into the wall (via mains adapter) at floor level, and rest the phone on a bedside table. This makes it much easier.
The first cable to arrive was faulty, and seemed to have a loose connection at the iPhone end as it would only charge if the end was bend upwards. The problem was reported via Amazon, and I quickly received an apologetic reply from the supplier, and a replacement was dispatched the same day. The replacement arrived promptly and worked without a problem, and has been used daily to charge either an iPhone4 or iPad2.
Good product, good price, good service.