Ulli's house is located in a quiet neighborhood in East Berlin. Although it's located outside the city center, traveling to Alexanderplatz, the Museum Island and other attractions is relatively easy. Check-in instructions were easy to follow and the description is accurate.
Ulli's house is spacious and lovingly decorated, with a large and well-equipped open-plan kitchen and living room. There is also a nice backyard, which must be a big plus in the summer. The rooms are large and comfortable.
The only issue we faced was with heating - the first two days it was rather cold in the house, even though the heating was turned on. Luckily there were enough duvets and blankets in the house to stay warm at night.
Overall my family enjoyed their stay, despite the heating problems.