Apartment is central which is great.
Bed linen for the second bed did not fit and the pillows were big square flat and uncomfortable. The noise from outside is crazy, mainly from a bar/restaurant on ground floor, and goes on after 1am. The apartment is bare. Don't expect any extras usually found in airbnbs such as shower soaps, coffee etc. This is a property certainly on the side of minimalist with few towels which we had to reuse over the 3 days. The curtains are light and a big skylight above the second bed means you'll be awake at sunrise!
If I were in Berlin with friends to party this would be fine but this is no place to stay if planning to sleep before midnight or after 9am.