I have available 2 renovated and fully furnished apartments in Dusseldorf. They're both located in Grupellostrasse 26, which is the City Center and only minutes away from the Koningsallee. The apartments can be had for around EUR Protected content 990, where the upper range includes everything (furniture, utilities, internet, TV, etc).
You can find the exposes for the 2 apartments via: Protected content (available October 1st) Protected content (available now directly)
I'm the owner, hence no broker fee's if you contact me directly via Protected content ;-)