We really enjoyed our stay.
Martine's no-fuss check-in and checkout was marvellous. The proximity to Gare du Nord (10 mins walk) made our trip from the UK on the Eurostar a breeze.
The apartment is just as you'd expect from the photos. Gorgeous views, well-stocked kitchen (tea, coffee, cooking oils...sparkling water!) and very useful things available (umbrella, guidebooks...).
Also, despite freezing temperatures, we were warm and cozy. Thanks Martine.