The apartment is exactly as described.
It has everything you need, and we had a great time there.
Domenico lives next door, and was kind to help us with extra covers and pilows.
Very small downside is the heating in the shower, which is a little unstable, and the downstairs neighbor is very sound sensitive. It would also have been nice with an extra set of keys.
On the plus side there is only a few meters walk to a beautiful lake, and a metro.
I would definitely consider going back, if I'm going to Berlin again.