I've got no regrets: the image quality is excellent at all focal lengths and even at maximum aperture, it can be quite good, old prime lenses (Mamiya with me 50 and 135 mm) measure; only to their light intensity, the zoom is not, of course ran. Autofocus runs nimble and silent, with the front ring you may wish to spontaneously re-adjust (but this is rarely necessary). The sensor-side image stabilizer of PM2 I shut: you can configure the Olympus so that they in lenses with OIS the stability of the lens is preferred. That's when aiming with a long focal length very pleasant, because the lens stabilizer already calmed the viewfinder; In addition, the built-in lens stabilizer seems to me to be much more effective at least at long focal lengths.
About the processing can also not complain, despite (high quality) Plastic: after all, the bayonet is made of metal, the setting rings run smoothly and without play, nothing rattles, the adjustment path between the end of the zoom is practical. The filter thread turns neither in focusing even when zooming with - good for the use of polarizing filters. The lens hood latches after a quarter of a turn, a stable - very convenient. Only the provided front lid dissolves a bit too easily.
Wishes to stay with me just a little more open with respect to light intensity and a protection against dust and splash water. But the sets this lens out his convincing compactness and light weight, making it ideally suited to the particularly compact Olympus E-PM2. In addition, the price is extremely low considering the achievable image quality.