We (the 3 of us) had a great week in Berlin staying at Juliane's place. Juliane and her family are lovely and made sure we had all that we needed for our stay, and that we felt right at home. We even had a welcome note; which was really sweet.
The house itself was very well decorated, very clean, and had everything we needed ( clean and fresh bedsheets, clean towels, toiletries, cooking essentials...).
The location is also a plus. There are a number of stores, cafés, and restaurants in the neighbourhood. The train station which is at about a 5 min walk from the house gives you quick and easy access to the city centre and most tourist attractions.
If I get to visit Berlin again, I definitely hope to stay at Juliane's. Hence, I definitely recommend Juliane's place for a pleasant and enjoyable stay in Berlin.