Without your own transport it's quite tricky to get around, there are no taxi's nearby or louages so you need to make sure you get a taxi drivers number. The guesthouse would do well if they hired bicycles.
Food - there are no restuarants within 3km, lunch and dinner are served at Dar Elbidha but there is no menu/choice as such and a little expensive to what we were used to in Tunisia. Internet access only with a modem/plug in usb so not really that practical if you need internet access.
The locations was superb, beautifully placed next to the sea - fishing boats on one side and peaceful shallow coast on the other. The most tranquil and relaxing spot on Djerba (avoid the Zone Touristique at all costs....) about 3km from nearest town (Ajim) which has banks, restaurants, internet cafe etc, and plenty of countryside nearby. Lots of holidaying Tunisian families visit the beach during the early evening/night which adds to the atmosphere and homely feel of the place. The owner Sonia was friendly and accomodating, family minded and along with other staff and her nephew helped us with any questions, problems, and really made our stay very enjoyable and fun. They also run a nice little cafe by the sea with cold drinks, ice creams, tea/coffee. Would highly recommend!