Extremely professional staff, large air-conditione...

Extremely professional staff, large air-conditioned rooms that can be switched off at night as it sounds a lot and sleeps, we were there for a period where the temperature fluctuated from 28-34 degrees and the room was a perfect temperature. The beds are incredibly comfortable and you fall asleep quickly on them. We had a nice little personal balcony where you could sit and enjoy the morning coffee if you had time, which is incredibly great and see in Berlin, and the Radisson blu is right in the center of it all. However, the hotel requires a 100 deposit when checking in, which is not anywhere if you book through the booking company we used.