We stayed at Julien's for 9-10 nights, for the holidays. It's an absolutely beautiful space, and had everything that you could possibly need. The location is incredible as well - blocks away from Notre-Dame Cathedral and the Hotel De Ville Metro line, as well as many restaurants/cafes - you really are in the center of Paris. Julien/Kim were also very communicative and attentive, and arranged every detail for us. We had a great experience, and definitely hope to make a return visit!