Heidi’s place was perfectly located for my meetings near Potsdamer Platz. You can walk to the Philharmonic and a bunch of museums as well. Heidi had everything I needed: an umbrella for the rain, a German charger for my phone, and strong strong coffee via a Nespresso machine in the apartment. The underfloor heating kept the space cosy even in the winter chill, and it was very quiet. The apartment is on the ground floor of a mixed business/residential area. Overall a very pleasant place to stay, and communication was easy and clear.