Arriving at the hotel, the receptionist at the desk warned me against the horrible fact that the main boiler, which would have guaranteed me shortly a wonderful hot shower after a cold day (winter is going) spent visiting Berlin, was out of service. A shower is an important welcome for a tourist who approaches your activity, and such a situation cannot be tolerated. In the end, I was forced to take a cold shower, and I did not like it at all. It ruined my staying at the place. Let's give it a try next time I will visit Berlin :)