I'm so happy I found this place! Staying at Katja's spooky place was a unique experience and had a special vibe, Katja was super nice and attentive, and we became friends very fast.
Her place is near the bus station and the U bahn just a few minutes walking in the really peaceful neighbourhood. I also saw a restaurant right around the corner but never had the chance to visit.
I had a great time in Berlin during my time at Katja's house and although a bit spooky sometimes, the spooky atmosphere had also a peaceful feeling to it.
I wouldn't recommend it to non- friendly and polite people though ;)