Very good hotel, with very spacious rooms, reasonably priced, and a 15-minute drive to Dusseldorf airport.
Well above average breakfast buffet is included, with fresh bread and pastries, cold meats and cheese, sausage, bacon, and scrambled eggs (real eggs, not the fake powder-based mush you sometimes find in North American budget chain hotels!). Also fresh fruit, yogurt, cereal, and juice. And there was a self-serve coffee machine and soft-drink fountain, available free, 24/7 in the buffet room. A great feature.
I would also like to single out the front desk staff for their help. My reservation was not transmitted to the hotel, something I believe was not the hotel's fault, but the two women at the reception desk (whose names I did not get) went out of their way to find two rooms for our party, even reducing the price because one of the rooms was not per our reservation. I would definitely recommend this hotel for your stay near DUS.