The location of the flat is great and it's easy to walk or take public transport everywhere (we mainly walked, but like 10min by bus from Ostkreuz). The area is calm, but there's a walking distance almost everywhere if you go for a pint. The rooftop garden was amazing for hanging out in the evenings and the bakery nearby was perfect for the mornings. The flat in itself has everything you could need for shorter och longer stay in Berlin. Two bathrooms saved the mornings for our group of 6.