The apartment was great! The position is perfect if you want to move around the city easily (by foot the Louvre, Tour Eiffel ect. were all round 20-30 min), there's a metro stop near by and lots of bikes to rent. The apartment though has only two very small windows: if you visit in the summer be prepared to sweat quite a lot in the house (in the winter that should not be a problem though).
Overall, we had a great stay!