I had a good stay in Wie's apartment. She is very accomodating and let me check in late at night after my flight was delayed. She was very kind and friendly to me and I would definitely stay again. The room itself is clean and good value, it's fine if you are a backpacker or on a short stay, but might be a bit small if you are there for longer. The apartment is easy to access by a short train from Oslo Central.