Barbara who helped with check-in, particularly after I had a canceled and delayed flight and arrived 10 hours later than expected was incredibly nice and accommodating, so I want to make that clear.
That said, I think something something some of the other reviews neglected is that this place (perhaps in particular this room) are quite cold in atmosphere and lack any kind of communal or spirit of Berlin. Indeed, it's one of the cheapest rooms you can find in the area, but that comes with a price. It's very no frills, bare bones. No waste basket in the bedroom, no mirror, a very very small kitchenette which you share with other guests which makes cooking very impractical. There's a timer for the light in the hallway (no windows), so if you're standing at the sink, the lights go out after just 3 seconds. There's also no washer, so you must use the laundromat a 6 minute walk away.
The Wifi also only worked in my room 50% of the time, and never at the bed. Because there's no common space, I often had to use my laptop from the toilet to get a signal. The chair in my room broke, and it's very hot in the summer, but to open the window/curtain from the bed, the neighbor's window stares directly at your bed, which is uncomfortable. At night they lock the doors which require a key from the INSIDE which is hugely illegal in the U.S. as it poses a massive fire hazard that could trap you in there, so always make sure to sleep with your keys in a memorable and accessible place. There was also no soap in one of the bathrooms, and water constantly bouncing out of the shower which made the bathroom wet and dirty if you ever walked in with shoes.
If you want a cheap place to stay in a great neighborhood, and just a place to lay your head down at night, it's fine, but it's certainly not a warm, inviting environment. I stayed for 8 days, and actually left a day early when I was able to find another place with a warmer vibe. I just want to mention these things so that others are aware.