I found Pascale's flat by limiting the search to the area where I had friends staying and it worked perfectly! The flat was super convenient for me to arrive from the airport with the Le Direct Bus and then about a 10 minute walk to the flat. The location is great for things around that Arc de Triomphe, Champs'Elysee and Tour Eiffel with several Metro stops nearby. There was a great restaurant if you like meat (Atelier Vivande) down her street and nice little food stop (Merci Jerome) just around the corner on Rue Kleber (only open during the week though). The 4th floor flat had a lift which was a bonus and big help after days of walking in what was an unusual hot spell. Pascale had a fan which helped immensely and the flat generally stayed cool. I would definitely look to stay again if aiming to be in that area of the 16th.