The apartment is excellent and exactly as promised:
1. Location - extremely comfortable. 5 minutes walk from Metro line 8 and 8 minutes walk from the Bastille metro station. Many nice restaurants in the area and close to supermarkets and other stores. It should be noted though that on weekend evenings there is some noise from the outside. It did not disturb us much.
2. The apartment itself is modern clean and well equipped. All of the applicances that we used worked (laundry machine, microwave, coffee machine etc.). The toilets and bath have windows so they can be easily ventilated.
The only thing that should be mentioned that was limiting for us was that there is only one key set to the apartment and since there were 4 of us, we had to coordinate our return hours based on this limitation (we did not want to leave the key in a "hidden place"). I have notified the owner and I believe they will solve this.