Staying with Christian was an absolute pleasure! He was incredibly helpful with regards to suggestions on where to find certain things in the city, and understanding and open when it came to any little requests I made. He was unbelievably respectful of me and my space, while also being willing to lend a hand at any given moment. He even was kind enough to help me with my German. The location was great! So close to the U and S banh, with a mall, grocery stores, restaurants and cafés just around the corner. I stayed with Christian for one month and it was wonderfully homey. His apartment is lovely, with tons of modern appliances. If I ever need to stay in Berlin again, I will most definitely return to Christian's place.