Mona's place is very clean and neat, exactly as pictured. Bed and pillow are very comfortable, I slept very well. Location is very good, right next to the train that goes to the airport (half an hour train ride). Walking distance to everything: grocery, cafe, attractions, royal palace, parks etc.
Mona was very kind and helpful. She was responsive and also gave me good tips. Thank you Mona. Would love to come back. I definitely recommend Mona's place and Oslo :)