I really can recommend staying at Galina's place. It is a private room with private bathroom (shower and toilet). If you just wanna visit Edinburgh for sightseeing and touristy stuff it's perfect. The next bus stop is in walking distance (like 5 minutes). The bus will take you to the city center in like 30 minutes.
Galina is nice, friendly and welcoming and helped me whenever I needed tips or practical help.