Ula's flat is great. It is perfectly clean, well-equipped and you have your own bathroom. She was welcoming, made us feel at ease in her home and gave us leaflets and a map.
It is located in a very calm area near Holyrood where there is the palace and the Parliament so it's easy to reach it by walking. There is also the Easter Road stadium nearby for football fans as well ! And it's easy to get to the city centre by bus.
I definitely recommand it for your journey.