I stayed for a few weeks at Thomas apartment and it was great! best stay in Paris. I highly recommend it. The apartment is located in la Villette near RER Rosa Park station, just a 5min walk or less to the apartment and for the metro station a 15 min walk but feels like maybe 10min. There are supermarkets and bakery shops near by and getting to center city like Gard du Nord is only a 5 min ride from Rosa Park station. The location was very convenient and the neighborhood was charming.
The apartment itself was wonderful, very quiet, lots of natural light when the weather is nice and I even had excellent Wifi connection to check work related emails. Thomas was a great host, he answered all my questions and made me feel welcomed in Paris. I will certainly stay at this apartment if I return to Paris again.