Woo hoo! Got one in a very slim window of ordering availability at the Olympus US store and it came today. It's smaller than I thought it would be. While it's roughly the same length as the 12-50 kit zoom, it's skinnier, and so it feels rather tiny. It's also very dense, with a little bit of unexpected heft. The focusing is quick and silent, and the manual focus ring is, by far, the best feeling manual focus ring for any m4/3 lens I've used. It's really well damped and has just a buttery smoothness. Wonderful feel. Of course, the lens is plastic, but very solid..feels essentially the same on the exterior as my Leica 45 macro (which I will likely be selling) from a quality standpoint. Very tight tolerances, very solid feeling. There is almost no CA with this lens, even wide open at 1:1, though it's not 100% apochromatic. There is a very slight hint of longitudinal CA when shooting black on white, but this is essentially the only situation you'd see it in, and even then it's pretty well controlled. Looking forward to giving it the run around! Just some quick snaps...hope to actually get to shoot with it a little today, but not sure.