I've had a great stay at this hotel. Located just near the Hauptbanhof, it was very comfortable: easy to go to the airport & close to the main sightseeing in the center, so I didn't have to use metro. Many shops nearby.
Room was quite clean & very warm, which was a great point for me. No problems with hot water, soap & shower gel were provided. Very comfortable bed.
It was a bit noisy outside and not as dark at night as I'd like to be (because of the outside lights), I could hear guests from the next room, but thankfully they were not very noisy.
Coffee machine & water on the ground floor avaliable 24/7.
Wifi worked perfectly.