The flat is very large, quite pleasant, and centrally located. HOWEVER, be advised that the host’s description is in some ways misleading: despite their claim that the location is in a “mostly residential” street (which would imply a reasonable amount of calm at night), it’s in reality right next to the KitKat club, a very busy Berlin night club. The back bedroom, between 12-6am, basically feels like you’re in the night club, with the music vibrating through the walls and floors. In the two front bedrooms (street side), you hear the music less, but the windows are right across from an all-night liquor shop and right above a taxi stand, places where clubbers congregate before and after the club, and tend to make a lot of noise at all hours of the night. There’s also a strong street lamp that shines right into the front bedrooms, while the curtain, which only covers half of the windows, is basically useless. In our opinion, this flat is a great rental for groups of people coming to Berlin to party for a weekend and who plan to be out most of the night anyway. It’s a lot less suitable for a family or for anyone who is coming to Berlin for work. We also feel the host should announce clearly this noise issue in the flat description, which they do not. If you count on sleeping at night, you might want to avoid this flat, or at the very least, being earplugs and an eye mask!
One another note: the host is not an individual but some kind of business, called Berlinlux. Our experience with their customer service was very disappointing. After spending a rough first night because of all the noise, we contacted them rather upset, and had to deal with an employee who had no power to improve the situation (by finding us another apartment or proposing a refund, for example), and was unable to put us in touch with his manager, apparently “too busy” with “meetings” to take a phone call…