The apartment is very well situated and well connected by the public transport. Line gave me full access to the apartment and was very responsive and helpful to any of my queries. She is very calm and has a pensive personality, and I was very comfortable sharing some conversations with her. You have a lot of privacy and basically don't hear her even if she's at home, unless you want a nice and thoughtful conversation!
Line also shared with me some of the food she made, notably some moose stew with mashed potatoes which was absolutely delicious!
I recommend Line's place if you want a cozy and familiar stay in Oslo.