My boyfriend & I stayed in Yvonne's apartment for 3 nights. Yvonne was very helpful with dinner & clubbing locations within Berlin. It was a very neat & clean apartment with gorgeous decor.
The location wasn't what we were expecting; (Neukölln is characterised for its highest percentage of immigrants of Arab & Turkish decent) which we were unaware of, and felt a little uneasy walking the streets (especially at night). It helps that there are two stations within 100m from the apartment (Neukölln & Karl Marx Street) so we could easily hop on a train which would take us to Berlin's centre.
I would recommend the flat to anyone who loves cats! Yvonne has 2 cats who are welcoming, attention seeking & fun to play with.
Overall, Yvonne's apartment was extremely pleasant and we really enjoyed our stay!