Absolutely 5 stars, Lubna was very welcoming and friendly, and I could feel at home. The location is great: a calm area very close to the city center, and the apartment even has a great view over Oslo. Communication worked well and it was easy to stay since I got my own key and the host was flexible with my check-in. A perfect place for one person to stay at. Google maps didn't really give the best directions to the apartment, so I suggest asking for those from the host.