Question about Olympus OM-D E-M10 II Kit

I assume that you are referring to two different lenses... Personally, I have only tested the M.ZUIKO DIGITAL 25mm 1:1.8 from Olympus together with the kit lens.
The 25mm fixed focal length is great for portraits and street photography! Super sharp and for the price simply to be recommended.
The kit lens has not inspired me as much so far. A zoom lens like the one you mention from Panasonic is probably a better alternative to complement the 25mm.

Hope that helps.