I loved it. Jochen and Ilonka made me feel very welcome, introducing me to guests and even sharing a meal. It was just the right balance of privacy and hospitality. I speak very little German, but they spoke English with me, and while I was present, we spoke English with their guests too.
The room was great. Clean, comfortable, with large windows to allow a lot of sunshine on sunny days. The bedroom and bathroom are both large, providing a little private apartment.
The house is also in the heart of the most interesting neighborhood in Bremen. I wouldn't hesitate to recommend staying here.