The air conditioning was a little spotty with a 19 degree C minimum. We didn't use it much, opting instead for opening the windows at night (early morning traffic and street noise became our alarm clock). The toiletries (shampoo, body wash, moisturizer) were a little bland (and no conditioner!) so we bought our own. The free WiFi was slow, the sign-in repetitive, and the constant default to Orange annoying.
For 15 days, Maison FL became our home away from home. The front desk staff were warm, welcoming, and responsive to our every need. The breakfast buffet was delicious (especially the plain yoghurt with apricot coulee, fresh fruit, and granola!). I really appreciated the room balconies and convenient little smoking area off the main lobby. The location is superb, surrounded by cafes and restaurants, a short distance from the Tour Eiffel, and plugged directly in to the Passy Metro station.