Probably the best all round use lens in the panasonic micro 43 line up. Decent speed, relatively small size, useful focal length, great IQ and with a reasonably price tag - kind of encapsulates the spirit of the micro 43 system. The mk II is compatible with both dual IS and dual IS 2, and still offers in lens OIS for older bodies.
At least $100 cheaper than grey imports and $130 less than the next AU stockist.
Review here
Agree this is best lenses for this type of m43 cameras.the result was really sharp and clear and blurry background is easy to get..autofocus aswell.if i choose 1 lense for my camera it will be just this one for the rest of my life