This is a lovely, well-equipped apartment. We stayed there for 2.5 weeks with our 12-year old and it was like a home away from home (2 adults, 1 child).
The location is so convenient, just a short walk to three different metro stations, tons of restaurants and shops nearby. The Bastille and Aligre markets are both walking distance away, as is the Jardin des Plantes, the Coulée verte; the Marais is not far either.
The kitchen is well-equipped, bedrooms are quiet, common space is roomy and comfortable. The apartment is on a busy street, so there is some traffic noise- it's a busy city after all. But the great location and view of Canal Saint-Martin makes this apartment hard to beat!