Berlín at its best!
Gudrun's house is amazing. I'm an architect and is a very good design to live, a very fine renewal. The room is grand, 4x6 meters and has fabulous views to the new "gleisdreieck park" so the perfect place to sit and work on my PhDs and chill as well. The kitchen and bathroom are also quite spacious with big windows oriented to the raising-sun. A place were you feel at home.
The area of kreuzberg is also very inspiring, the people, it's markets... There are three parks all around the corner, well connected to the metro and public transport lines as well. Also Gudrun has a bike for guests, perfect to know the city. But what I enjoyed most of all, is the kind of friendly ambiance and hospitality that I found here... It's a place to return
Thanks again