David's apartment in Leith was exactly what we were looking for and we would highly recommend it. We were a group of 9: 4 adults and 5 kids, and stayed for 5 nights. The apartment has great character, nice places for kids and adults to hang out separately (kids in living room/lounge) and parents in kitchen (yes, drinking scotch and wine!), excellent local restaurants (chop house, and tapa), and a pleasant break from the hub bub and bustle of central Edinburgh. Leithers are friendly and welcoming and central Edinburgh is a short bus ride or 30 minute walk away. David was incredibly responsive and always available by phone or txt.
If you are looking for a unique, old, beautiful place with a friendly host, we definitely recommend David's great place!