We booked this well in advance for a 3 night break in Berlin. Had some concerns before going as recent reviews not that good. Returned on 25th September and could not wait to leave. On arrival the hotel reception area is cramped, dark and grubby. First concerns regarding cleanliness were confirmed, removed 16 black hairs of varying size from my bedsheet on the 1st night! The room was very small with a very small gap to get around the beds, which were the most uncomfortable beds ever, we hardly managed to sleep at all. The room was described as having a bathroom on the booking site, this turned out to be a dirty shower cubicle in the corner of the room and a sink. The toilet was in the hall which we were aware of, however this was smelly and dirty.
We did ask to change to another room with bathroom but hotel manager vague and unhelpful. It was so bad we looked for another hotel, but due to a large event in Berlin there were none available. We enjoyed Berlin and all the sights but the best part was leaving the hotel on the last day. If you like home comforts and have hygiene standards don't book this hotel. If you end up on the top floor like us its 6 flights of stairs and 61 steps!