Kades is well worth the short taxi ride from Potsdam, and can easily be combined with a visit to Cecilienhof. A wonderful experience with an "out in the country" feel. The weather didn't cooperate during our visit, but it appeared that there was some stunning outdoor dining space when the weather is fair. Really knowledgeable service (we had an idea we were being served by the owner, although that seems unlikely). Highly recommend!