While the staff was quite helpful and professional they dropped the ball on the Air Conditioning. Apparently the owner has decided that the air-con can only be set to 22C or 72F, no cooler. So for those of you who like to sleep cool, you will be out of luck unless it is cool enough outside that an open window will cool the room, but then you have to deal with street noise. We found it hard to sleep with the big duvets on the bed and were constantly kicking it off and pulling it on. No way to sleep.
I must applaud Germany for their conservation of energy. We saw many ways that they have used thoughtful ingenuity to conserve energy, but this was the only hotel that sacrificed guest comfort.
The location was perfect for us. Maybe 50 steps to the underground, and a massive shopping mall. Lots of restaurant choices nearby too.