My husband and I came to Berlin to run Berlin marathon for our honeymoon. Frank is very nice and very responsive. The location is great and is very close to 40km of the marathon route. 5 minutes walk to U6 line and also a great Vietnamese pho shop, where you can get hot pho, sushi and some Asian dishes. There is also a Chinese restaurant downstairs but we didn’t try. The only thing to note is there is no washing machine in the apartment so you need to hand wash the clothes. Otherwise, Frank’s place is awesome and we would like to stay here again if we can come back to Berlin. Thank you, Frank!