Absolutely fantastic location - can walk to Louve and Sacre Coeur in 15 mins, or get on a free bike and be there in minutes. And plenty of choices for eating in the area (Loco downstairs does good steak).
Also close to public transport, including Gard du Nord.
Apartment better then photos, very big, and great that sleeping and living are speared by the entrance - kids go to bed and adults can carry on socialising.
And finally, excellent comms from Rene, both before, during and after the stay.
Highly recommended.