Stayed in this hotel for one night during a city b...

Stayed in this hotel for one night during a city break in Berlin. The location is excellent and is perfect for exploring the city by foot. We booked this particular hotel because of the enormous indoor fish task. Our room had a small balcony which overlooked the fish tank. At night when the lights are dimmed you can see the fish swimming in circles around the tank as you lie in bed, it felt as if the room was underwater.
The room was clean and of a good size. We were impressed by the service and by how polite and knowledgeable the staff were.