We had a very good time in Berlin, also thanks to Bernd.
He welcomed us at the apartment and advised us on some nice places in the neighborhood (ice-cream at Hoky Poky was indeed terrific).
The apartment has everything you need. It's clean, cozy, but not too small.
Perfect for a few days!
The location is swell as well. Nearby public transport and in the heart of a cool neighborhood.
Tip: rent a bike on the Stargarder Strasse and every nice place in Berlin is within less than half an hour distance. You can arrange to bring it back in the morning, so you can take you bike if you do dinner and drinks.