Even though the photos show a nice apartment, when I arrived, the apartment was beautiful, light and airy. It was the perfect stay for my needs. Access to plenty of green spaces, ease of access into the centre of Berlin and to various other areas. The terrace is big and lovely with shade in the mornings and lots of sun in the afternoon. A great airflow through the apartment and great natural light all day.
There were no problems with WiFi, the shower is great and though I prefer a firmer mattress, the beds are comfortable. The fridge in the space was a real bonus, there is a desk with comfortable chair and ample storage. The kitchen is well-supplied and available for use and there is food composting access for those that like to do that. I cannot say enough kind words about the hosts and how kind they were, being courteous and considerate as well as letting you have your space.
If you have a car, there is a petrol station less than 5 minutes drive down the road and a bus stop in either direction right by the entrance to the residential road. Alt-Mariendorf is the closet U-bahn stop.