Benedikt is a friendly and very responsive host and the flat is a good alternative for those looking for a relatively cheap studio flat (for Berlin standards) with good connections to the city center through the nearby S3/S9 station.
All amenities are included, including a microwave (apparently recently bought) and a kettle (that I left behind), which were previously unavailable. The surroundings are extremely residential, so don't expect supermarkets nor many services. Luckily, you may travel to a shopping center at Spandau or various stores in Charlottenburg or further in Mitte. The Corbusierhaus is an architectural treat and the neighbors are very friendly. To wash your clothes, keep in mind that the shared washers don't include the detergent/softener, so don't forget to buy your own. Each use is currently 2,5€ using previously-bought special tokens.
The view to Berlin Mitte is superb!
I would definitely recommend this flat for young working professionals or a young couple.