We had a lovely time staying in Helene and Vladimir's Paris apartment. Helene was very welcoming, made sure we had all we needed and ordered a taxi for us on our last day. We didn't meet Vladimir but he had drawn us a detailed map of the neighborhood which was very helpful!
The apartment was close to the metro station Marx dormoy, so it was quick and easy to get to all the places we wished to go. Walking distance to sacre coeur and montmartre.
Interesting food market one street away from the apartment.
Would definitely recommend as a place to stay and Oscar's friendly face was a bonus!