We stayed at Margaret's place for 4 days and loved it! She's such a nice and sweet person and helped us whenever we had any questions or problems. The flat is located 8 mins by bus (or about 20 mins to walk) from the center and is located in a really nice, calm and green place. There's a bus almost every 5 mins and it's really easy to get to the city center. The room and bathroom were really clean and Margaret prepared a breakfast for us every morning. We will definitely stay at her place, if we visit Edinburgh again!