The food is terrible, and pricey, but otherwise a very busy and popular spot.
Despite being a smoke-free property, there was a continual stream of 2nd hand smoke coming in through the ceiling vents. Two of the nights it was so bad, we stayed elsewhere.
Some of the appliances are a bit of a learning curve to use, but otherwise the kitchen supplies are basic.
Water in Berlin is hard, however water pressure and temperature at this hotel are excellent.
Local taxi services in Berlin are still confused as to the whereabouts of this hotel, so make sure you have the full address available if you are using cabs.