Julien's flat was clean and as-pictured in a prime location within the heart of Paris. However, the beauty was only skin deep for this flat. The decor was cohesive comely but cheap upon in-person observation. The building the flat was housed in was eerie and poorly maintained to the point we felt unsafe on the stairway to the unit. There was exposed wiring, peeling paint, and flickering lights. Julien also boasts that you will be greeted and helped by a "butler", but his definition of a butler is someone who texts you several entry codes (which were incorrect at first), is not on-site at all, and does not have any recommendations for spas nor restaurants.
Much of the above quarrels would normally be bearable, but unfortunately, prior to our arrival, I reached out to Airbnb as well as Julien to shorten my stay (given the Covid-19 pandemic ) and neither were accomodating in the slightest. We ended up having to leave France early (and lost over $500 worth of our Airbnb stay) in order to make it back to the US prior to the European travel ban was enacted. None of our trip or stay was refundable or cancellable although we attempted to modify the reservation more than a week outside of our arrival. Overall, I would be hesitant of booking this flat if you are traveling alone, anticipate any variations to your trip (for personal reasons or a global crisis) or if it is your first time visiting France.