I stayed here for my last day in Düsseldorf. The hotel is actually inside the train station. Check-in was fast, with the assistance of friendly staff. The rooms are not huge, but they have the amenities one needs. Wifi, TV, comfortable bed. Clean bathroom, with a walk-in shower.
Breakfast is buffet style, but I chose not to include it in my stay.
I can certainly recommend this hotel for anyone who needs an overnight stay and has an early train departure in the morning.