As a family of 4 (kids of 5 and 7 yo), we had to spend a night in Edinburgh before a flight, and this flat was convenient, between the city and the airport, with a lot of buses driving nearby. This situation means also that it is away from any interesting place. I would have made a different choice if we planned to stay longer and visit properly the city.
A good point for its cleanness and the fact many basic food stuff and soap (probably from former guests) were provided.