We simply loved it. The apartment is in a great location in the middle of the "Le Quartier Latin", a few minutes walking distance from many historical and touristic sites, tons of restaurants, bistros and cafes. For an authentic breakfast, we simply walked out a few steps to the neighborhood farmer's market and bought croissants and fresh berries!!
The upper bedroom has a mini portable A/C for hot Parisian nights which is great. Since the apartment is on the ground level, which was fine for us, the only thing that could be improved for security purposes is installing a metal barrier around the windows to increase security especially when windows are left open during the summer. Other than that, highly recommended and will definitely book again.