Marthe was a great host, her home is bright, cheerful and compact, and the bed was comfy. It was a fleeting stay, as I was travelling on the next day, but Marthe gave me great advice on how to use the local trams (it was my first trip to Norway). She's really friendly and helpful, while her home is quirky and delightful.
I recommend that you don't do what I did and turn up with a single, very heavy suitcase that was difficult to lift up the stairs to the apartment. I was so grateful when Marthe came down and carried it up with ease.
100% recommended.