It was in fact a positive experience for a single traveler seeking for a simple, casual, affordable place to stay. The reviews at first were a bit underwhelming - but I wouldn’t hesitate to stay here again, as it was better than average for sure. In fact it was very affordable, great location near the subway station Rathaus Steglitz bringing you quickly into the city core, even to the airport via Bahnhof Zoo.
The room was clean, not so modern, but I certainly did not mind at all. Silent at night (5th level), wonderful bathroom with shower, large windows you could open and adjust yourself, curtains which kept daylight out when necessary. Very friendly staff at the 24 hour desk. For 35 € a night, it was a steal and I had to smile because it was a good place - so yes, I recommend it.