We LOVED this hotel. We booked two rooms: one for my husband and I, and one for our teenagers. The beds were comfortable. The rooms are large. Having a laundry was important to us since we were on a multi-city journey using minimal luggage. The laundry is an efficient washer & dryer combo where you put a load in, put in the detergent tablet (not provided), and set it to wash and dry. It is located in the mini-kitchen area of the room. Instructions were provided in English. It took about 3.5 hours for a load to complete the wash and dry cycle. The breakfasts were great with lots of options for breads, eggs, bacon or sausage, yogurt, fruit, juice, a coffee machine that had hot chocolate, etc. The service at both the front desk and the breakfast area were great with friendly English-speaking staff. They stored our luggage after checkout until we left the city later that day. The hotel is a 5-10 minute walk from the Messe Deutz train station, which is one train station away from Koln Hbf. We usually walked into the Cologne old town area, even to the chocolate museum, which is 1.5 miles away. We used the gym, which was nice, but not the pool nor sauna.
If we ever make it to Cologne again, we will choose this hotel. I will look for this chain in any future travels we may have in Europe.