This is a humble and loving home of Ljuba, and her great-granchild. As a person who didn't speak a lick of English, Ljuba attempted her best to communicate to me in English, and we would fumble in German charades for a while - for that I was thankful for her patience.
As for location, it is right of off Birkenstr. A little far outs in the upper west corner of Berlin, and is one stop away from an S-bahn station. It has an Edeka about 500 meters away, and is a good spot if you need to crash. A little far from the center, it can take about 30-40 minutes to get into Friedrichst.
The apartment itself rests on an old structure, meaning it has a sensitive toilet that likes to not be flushed with anything other than human waste, and Ljuba will direct you on how to navigate her home. Ljuba was graceful enough to offer me a couple hours after my check out time to go, but rushed me out as it was obvious I was getting my things together. I would recommend this place for someone needing a place to sleep, but not much otherwise.