Don't hesitate. Book. Now.
Solo lady travellers and couples you will find immediate comfort at Ursula's. It was clean, quiet, spacious and relaxing. I regret I hadn't booked with her the whole time I was in Berlin.
Things to note: the bedroom is on the second floor and your bathroom is on the first. If taking public transport, you will need to bus it to the S-Bahn but from there it is a breeze.
This was by far my best Airbnb stay! Vielen vielen Dank!