We absolutely loved this place. Despite the very hot weather, many windows and skylights and a fan made it all bearable. The place was immaculate, the linen impeccable. It's close to public transportation in a quiet neighborhood. It's also close to a train track which we didn't mind at all but could be a bother to others. Not only do I recommend Jens and Stefanie's place, but I plan to go back to it myself next time I visit Berlin! Berlin is an awesome city that deserves more than a singe visit!