Main reason of the purchase was the annoying changing of the kit 14-42mm and the 40-150mm Objektivev for me. The lens is great processed, it makes dirket the impression that it can what. It is the weight in about as heavy as the two kit lenses together. But one renounces a little focal length in "short" range is rewarded much more focal length in "wide" range. For me, outweigh this benefit. The only drawback is that it at 180 mm only a maximum aperture of 6.3 has that somewhat diminishes the advantage of focusing. Compared to the kit lenses, I find the lens a little overpriced but this one has the same screwed the right lens for every situation. Not for nothing, the lens is considered a top "Travel Zoom". From the image properties, I can not see any difference to the kit lenses. The lens Preference provides a basically much more flexibility.