Me and my sister had a great time at this hotel. The rooms were tidy and the location is great. You can walk to Alexanderplatz in 15-20 minutes.
We heard people talking in the room next to ours but it was pretty quiet, and all the people on our floor respected the quiet hours. There were only shared bathrooms and no kitchen, electric kettle or cutlery. However, all this is either mentioned on the Airbnb page or shown in the pictures, so we knew to expect it.
Overall, I think it's a good place to stay for a day or two. We have no complaints.