Been to Berlin many times and it was an absolute pleasure to stay at Katrin’s place. It was clean and had everything we needed for the week. I had read a review about an ant problem but we only saw one and had no other problems with that.
The Airbnb is super close to Neukölln station for getting round and I guess if it bothers you you can sometimes hear the U-bahn underneath, but to us that was just the beauty of the city.
We had coffee, the beds were comfy and the neighbours relatively quiet. Good pressure on the shower - hot water… What more could you want.
The only thing I could say was it was tricky to figure out which doors to go through at first (we arrived about 11.30pm) but Katrin had given clear instructions on message and we got there in the end