Had a great time at Nathalie's house although admittedly we spent more time with Lucky and Luna. The room is comfortable, a very short walk from a bus that takes you right into the city and to/from the airport, or the metro is about 10 minutes away. We did walk to Christiania and the food truck market on our first day which took about half an hour, so not so long.
The place was clean and warm, Nathalie and Caroline were both friendly and accomodating and the only thing I'd say for future travellers is that there is a staircase to get into the house which is a little difficultt to navigate with heavy baggage - but we managed just fine even at 5 in the morning when we left :)