We really enjoyed our stay in the Neukölln neighborhood at Ron’s place. It’s a truly cool apartment and very comfortable, we were only 2 but the apartment would have very comfortably accommodated 4. Very thoughtfully curated record collection, a “by donation” bar, local recommendations (take them!) and everything you’d need in terms of kitchen and bathroom amenities.
One note is that this is someone’s home, which means there is personal effects around that add to the character, unlike other soulless rental only Airbnbs ;)
The neighborhood is very walkable with great nearby restaurants, world class coffee shops across the street, and fun vintage shops. We would recommend this stay to anyone!