Communication with Dune was super smooth all the way from booking to leaving the keys.
The flat looked just like in the pictures but was actually even bigger than I thought. The place was airy and light and just lovely!
Location was great with several métro stops nearby and the RER from the airport also stops very close. Anyway, you don't necessarily need the métro with Jardin de Luxembourg and Montparnasse just around the corner.
I definitely recommend staying at Dune's place to get a touch of a modern Parisian chic lifestyle.