I purchased this item in anticipation of our vacation to Europe, with stops in Germany and in England. The unit worked well in both locations - I had no problems using it to power my laptop and recharge my iPhone. It came with a small storage bag as well, which was reasonably well made, and protects the unit from grit & etc. It is small, about the size of a typical wall-plug power supply, though not as heavy: easy to pack!The usage of the adapter is very straightforward: pick out the appropriateSee full review