We have spent 5 wonderful nights in Andreas' flat and it was one of the coolest impressions in Berlin. It has its special atmosphere because of space and amount of books and music cds. There is everything you need for making breakfast and huge windows so flat is full of light. Also area nearby the house very calm and full of green. U-bahn is like 10 minutes to go. We loved to live in Kreuzberg, there is literally everything you might looking for. Andreas is very responsive, positive and hospitable. I surely will recommend this place for friends who want to visit Berlin.