I live in the district of Voltaire, in the 11th arrondissement. 20 minutes from Bastille on foot, 10 minutes by metro from République and the magnificent Canal Saint Martin. The area is very nice, full of small restaurant and good addresses which I will be happy to leave you the list!
The studio is close to line 9 and line 2 which gives you a very easy access to the most beautiful places in the city.
Even late at night, the return to this part of the city is accessible via night buses.