One of my first m4/3 lenses was the Olympus M Zuiko 14-42mm ED MkI. I have only bought two other m4/3 lenses since, the Panasonic G 14mm f/2.5 ASPH, and the Panasonic G 20mm f/1.7 ASPH. I use the “Kit Zoom” often, and I don’t have a concern that it won’t deliver. It does deliver. It may not be “as sharp” as the primes I own, but it is plenty sharp for a ton of subjects. I have used this lens in the studio, outside for landscapes, and portraits of my Son.