Pauline's apartment is charming with unexpected, clever decor. The living room and bedroom are good-sized, and for two people, it is nice to have separate spaces after a few days! Shower room is quite small but good temperature and pressure. 6th floor walk-up meant we didn't return home in the middle of the day, preferring to make the climb only once - but it's a welcome bit of exercise after consuming so much delicious food in Paris!
In terms of location, the apartment is right at the end of the Coulee Verte (elevated green space) and a short, pleasant walk to Bastille through this park or on the street. There is also a convenient bus line through the Right Bank, or connections nearby at Gare de Lyon or Bastille. We walked almost everywhere during our stay and barely took the metro, but it was nice to have a direct bus line back home if it was late.