I've had the lens for two days now. Except for the speed (f4) it's quite a treat to use. I've only shot this wide with my Nikon 14-24 f2.8, and the Fuji lens is about 1/3 the size, and with OIS I can hand hold down to 1/15th sec. I was walking the streets of midtown NYC, shooting people while looking through the viewfinder and was literally inches from them when their head and shoulders filled the viewfinder. I'm gonna love this lens.