Overall everything was great, however, our room attracted a lot of dust and we had trouble sleeping at night because of our allergies caused by the room. When we called the front desk, it wasn't mentioned through Airbnb that this was a "non allergenic room" and I think that would've been helpful before booking.
Overall the hotel is great, the staff was helpful in trying to provide hypoallergenic bed sheets to help with the room, and if you are staying for a longer period of time in Berlin, it's a good value for what you get. There is a micro kitchen complete with kitchen supplies, a gym, and a desk within your room. We stayed a month here which was more or less comfy (aside from the allergies).