Sylvia's apartment was ideal! She was very welcoming and waited for us on our arrival. She showed us all the important things in the apartment and left a book with a few details. The wifi worked perfectly the whole time we were there. If you go upstairs you can see Sacre Coeur from the window, its beautiful! We were a short walk from the metro and the main station Gare de Nord, where you can take the train to the airport. I would definitely recommend this apartment to anyone staying in Paris as it's central, clean and cosy :-)