Just perfect ! Erwann's appartment was pretty big, very comfortable, but still very affordable (a hard find in Paris). It was very clean, with all the equipments needed for a long stay (we stayed 1 week).
I didn't have the chance to meet face to face with Erwann, but despite that the communication was excellent and very friendly. Erwann always replied quickly, and the check in process was very easy.
The location was great: quiet area with a bunch of shops nearby (supermarket, bakery ...). The nearest subway is only a couple minutes walk, and the bigger subway Hubs "Denfert Rochereau" and "Place d'Italie" are also at walking distance (~10min), giving us a quick access to most areas of Paris.
But the best part was to be so close from my favourite area in Paris: "La butte aux cailles". Perfect for a nice dinner or just a drink after a long day visiting Paris !
I would recommend Erwann's apartment without any hesitation, and would stay there again if I go back to Paris.