This flat is placed in the heart of Düsseldorf. It's in one of the most beautiful Streets. And best of all, you are near to everything! To the fair, old town, city center (Königsallee), and the main rail station (Hauptbahnhof). There are 5 Supermarkets near, so you have a big choice. Great Cafés and bakeries as well as restaurantes.
The big art museum is 10 min away by foot, if you really take a slow walk :)
If I'm in town I would love to give you a small trip, or even show you around.