I have a 3 older than yours (without the glassy faceplate and horizontal lines), and it's a special pleasure to shoot. My first was a Werramatic from the same era as yours, and, probably like Ronald's, its aperture/speed dials were sticky and stiff, it was missing the little tabs that make separating aperture/speeds easier, and the CRF was slightly off vertically. But it wound smoothly and shot well. My Werra 3 operates quite smoothly in all ways, so the shooting is more pleasurable.
If yours has smooth movement and a clear VF and a clean lens, it should be easy to get good results with sunny 16; you may want to add an auxiliary RF if you prefer to shoot wide open. And if the camera is sticky, hazy, consider a CLA, unless you prefer to do the best it can as a $30 investment.
Somewhere in the scale focus forums, I started a Werra image thread. Post something once you get some results back!