This hotel - more like a hostel, really - was conveniently located only ten minutes' walt from Alexander Platz, was clean and tidy, and the staff at check-in spoke very good English (despite my protests at practising my German!). As you might expect, the bathrooms and showers are shared (there are cubibles, obviously!) but there are enough for queues to not be a problem, we found. All beds are singles (we had a two-person room, two singles, not a double).
Negatives: Hotel did not change towels or bedding during our 3 night stay, which although was fine for 3 nights, I was unsure as to whether they would if we stayed any longer or not - didn't ask. Also, the walls are all very thin - so if you are in a room next to a bathroom like us, I'd ask to switch rooms as you'll hear the doors slamming and the toilet being used and flushed! Or, bring ear-plugs... Also there is no wi-fi, or internet connection anywhere in the hotel, or even computers you can pay to use - there is a cafe with free wifi only 5 mins walk away though in the direction of town, or if you need a computer then there's a cafe 5 mins walk the other direction.
Overall - it's basic, but for the price you pay, you would expect this. Nothing about it is exceptional, but for 3 nights, and only 10 mins walk from town, I'd stay here again at this price.