I loved staying with Ulrike and Bruno! They were so friendly and accommodating! It's one of those Airbnbs where you feel like you are part of a family and a real home, not just saving money over a hotel. They helped me with everything I needed like travel advice, and even opening a bottle haha. They speak English fine, but they also let me practice my German sometimes and they were patient with it. We talked about music and Bruno even played a little piano for me.
The location is very good. Soo many sights, shopping, food, and green spaces nearby, and very convenient transport links. I think you could even walk to central Berlin and the big tourist spots if you don't mind a long walk, but I didn't try it. I was there for a concert at Columbiahalle, which is a pretty short walk away.
The room is very comfortable, spacious, and pretty quiet (day and night). The only thing I would note is that there are a lot of windows and no curtains or blinds, so there's limited privacy and you should bring a sleeping eye mask if the light bothers you. But I'd still rate everything as 5 stars!