John's Appartement is very well located near the Aligre Market in a very calm area with lots of nice and good bars and restaurants nearby. The Metro Ledru Rollin is very near to discover whatever you want. Bastille is 500 meters, Notre Dame a little bit more than 1 kilometre, so if you prefer a nice walk to the city and Marais, that will be no problem also.
We used the parking spot which was very comfortable!
In one word: staying at John's apartment felt like coming home, and this is the best compliment I can give.