I was only skeptical about such a "simple" product. The reviews were consistently good here - so I ordered the product, because for 11 you can do little wrong. For product: The lens comes well packaged and protected in a hard case, ie the lens is good from damage. It is simply screwed to the filter thread of the lens and away you go. The great, the lens has built on the other side a thread and thus can if required further close-up lens or filter mount. The lens I tested with an Olympus E-520 with 14-52mm lens. There are no vignetting or other artifacts.
The images are sharp crack and the focus is located exactly on the dot.
Round I have to really say that it is worth every penny in the lens.
