I just spent a night at the Holiday Inn Ratingen. It is by far the worst 4* Property I have experienced in my life. If I would have know I sure would have stayed somewhere else, and not worried about the price already paid (41$ + Tax). Run down and dirty in the middle of nowhere. Hotel Pub highly overpriced drinks and unfriendly. Being close to the airport is the only benefit, and the staff at the front desk was very friendly. Cannot believe that hotwire even considers it a Dusseldorf city hotel since it is far off the beaten path. My tip is that you will be better off if you book a 3*, than getting this shabby place.