Staying with Jürgen and Christine is great. They are sweet and perfect hosts and happy to help you out with anything. I went to Berlin for a two month traineeship and stayed in Wanneer and this was a great place to stay. Everything is exactly like in the photos. There are multiple supermarkets within walking distance and two busstops with a bus that goes to the train station every 10-20 min. From the train station it's possible to reach the city centre within less than a half hour.