Valentin's apartment was as advertised - comfortable and in a very convenient location with groceries around the corner and boulangerie right at the entrance of the building (with particularly good pain au raisin - nicely cooked and chewy, I had one every morning!).
Colonel Fabien metro is only a short walk away, and it is on metro ligne 2 so it is very convenient to get around Paris and connect to the main metro stops and major stations.
Valentin was easy to communicate with, and I had no issues at all during my stay.