In the following points of this lens lost 28-140 Vario with my personal photos Test against the Panasonic.
Focus less at all focal lengths.
Bokeh unsightly.
Haptics seemed cheaper.
Mounting on MFT bayonets was also bumpy.
It's not bad, it must be clearly stated!
But since I had the opportunity to choose one of my two, I decided for the other. Those who still buys, but will not be dissatisfied.