I knew up front that I would be staying in an apartment complex, and that there wasn't a lively street scene in the vicinity (I was curious about what living in a plattenbau, possibly designed by Gropius, might be like).
That said, the apartment was more spacious than I expected, and there was plenty of morning light though the east facing windows and balcony. Most importantly, the flat was very quiet once you were inside, even though the building's halls and stairways are constructed of hard and echo-y materials.
The apartment is clean and in good shape, the tap water tasted fine (not always the case in Berlin apartments), and there was even a choice of decent knives in the kitchen (one of my pet-peeves with AirBNB listings is how often you have to contend with dull kitchen knives).
The nearby mall was sufficient for groceries and the subway line was indeed very close--and as a bonus got me to most of the places I wanted to go without even a transfer.
Communication with Oksana was always quick, which was especially appreciated the first night, when I was checking in late and there was a delay on the subway line.
In sum, I would definitely recommend Oksana's place.