Dörthe and Ercan's place is in a very safe, residential, and trendy/quirky area of central Berlin. It was much more spacious and modern than depicted in the photos. There is everything a visitor may need, such as a blender, coffee machines, oven, fridge, washing machine, vacuum cleaner, clothes horse, plug converter, many towels etc. The beds were comfortable to sleep in.
The tram stop is right outside, and there is a Lidl next door. There are plenty of restaurants (including fully vegan), cafés/pastry shops (Konditorei) , convenience stores (Spätkauf), and artisan shops in the area. Dörthe's communication was excellent from the start, he provided detailed check-in instructions, and we enjoyed the thoughtful welcoming touches. It was very quiet and clean, with cleaning materials and detergent provided which is useful for longer stays.
I would definitely stay here again. Thank you, Dörthe!