We had an amazing time at Andreas's place, and would have stayed longer if we could! We give it a wholehearted recommendation. A classic Altbau-style apartment with an elevator - a very rare combination!
So many things make this apartment unique - very large rooms & super-high ceilings, artistic touches in the design and decoration, one of the only kitchens in Berlin with a professional espresso machine, excellent amenities, and kind treats from Andreas to make us feel welcome.
A great base for exploring the city (multiple buses right across the street) and at the same time very inviting to hang inside and spend hours over breakfast.
The neighborhood is quiet, not much night life going on but great places to eat and shop, which we were very happy about. Two thumbs up!