Pauline's apartment is very unique and a wonderful place to stay. The check-in process was a breeze. Pauline had already sent us the door codes beforehand, and she had ran out for errands just before we got there, we were able to get the keys from the friendly store owner who has a grocery market on the ground floor of her building. As for the apartment itself, it has a wonderful bathroom, a kitchen, and the bed/pullout sofa is surprisingly comfortable. The place is very clean, and Pauline is incredibly sweet and accommodating. The apartment is a 5 minute walk to the Metro Station "Charonne" (M9 Line). Even with the back windows open, you'd never know that you're sleeping in a city with 2 million residents: it is quite quiet, and the apartment stayed very cool, even during the intense heatwave Europe was experiencing in June. A great place to stay and a wonderful value!