I was in Berlin for business. Martin's place is well situated in a quiet neighbourhood close to busy and bustling Potsdamer Platz, a 5 minute walk. Tiergarten, Brandenburg gate, several museums, Unter den Linden all within walking distance. There's a nice little park across from the apartment which I'm sure is nice in the summer time. The apartment is on the main floor and very easy to access. It's simple but efficient and it felt like home for the week. Lots of great restaurants in the area as well as a few supermarkets. I can recommend Indian Street Food, a little take out place almost right across the street. Martin was helpful and great to communicate with and everything, weather aside, made for a great stay in Berlin.