Jessica is a wonderful host and her apartment is located perfectly! It's in the lively Simon-Dach-Straße and everything you need is close by (Good connections to public transport, supermarket, restaurants, bars, the market on Saturday and Sunday at the Boxhagener Platz). What makes the apartment so unique, is the quietness. It's located in the backyard of the building, so you basically hear nothing of the rumorous street. And there is a garden, which is very unique for Berlin. The interior is modern and the apartment has everything you need.
Jessica answered all my questions very fast and polite; I can really recommend the place!