I have been staying at Jung Soo's place several times already and I really like it there. It is a beautiful apartment and it is very quiet there. It is perfectly located if you work or plan to stay in Oerlikon as it is only a 10-12 min walk to Bahnhof Oerlikon. Nearby there are many restaurants (Thai, Swiss, Vegetarian (Tibits), Döner Kebab, Italian, Burger King etc.), ATMs and shopping opportunities.
Jung Soo is super friendly and she even provided some food (fruit, Muesli and milk and more) for me. Communication with her is very easy as she always replies to messages very quickly.
If I come back to Oerlikon, I will definitively stay at her place again and I can recommend it to other as well.