We had a wonderful stay at Heloise's apartment. The location is amazing, right in the heart of the city. We didn't have any trouble with the stairs but we are in good health and travel light. If you bring a lot of luggage it's probably not the right place for you. Otherwise it's amazing. Heloise was a wonderful host and gave us many recommendations for her favorite spots, unfortunately our trip was only for 2 nights so we weren't able to visit them all. We will definitely stay here again when we come back to Paris!