Very good

Exceptional

Highly recommended

Liked: Extreme clean & warm shower & Dyson dryer

Very good

Liked: Very well located hotel, specially if you are visiting the cathedral or the Christmas markets. The room had the perfect size for me and was well equiped and comfortable. Two drink bottles (water and local beer) were offered by the hotel. I did not eat at the hotel so I cannot comment on that.
Disliked: There was a bit of noise coming from the street outside the hotel during one of my nights there, but nothing of much concern unless you have a light sleep.

Very good

Lovely hotel in a great...

Liked: Centrally located. Clean and modern.

Nice stay in Cologne

Liked: Nice location close to the station, restaurants and shops. The streets were very quiet at night, ideal for a light sleeper like me
Disliked: They don't have an ironing facility

Superb

Liked: It was in a brilliant locationThe staff were niceIt was a new hotel
Disliked: I had to self check inWhich was ok but don't like things like that

It was a perfect location...

Liked: We stayed in one of the top floor rooms. There is a good amount of space, the bed was comfortable, all the windows open to let fresh air in. The front desk guys were super helpful. It is a walk up and we were on the 5th floor (6th technically) but he brought most of our bags up for us. The only small issue with the room was that there isn't a full length mirror.
Disliked: The breakfast was a little lacking as well as the guys making it. They didn't come off very friendly and I didn't know if it was ok to ask them to make me food. There isn't an obvious sign and they didn't ask us if we wanted anything other than coffee. I still don't know if it was okay to ask for food, but they did make me scrambled eggs.