I booked a two week stay at the apartment in Montmartre and had a wonderful time. The space was clean, comfortable and had the amenities you'd expect, except a television. However, that did not matter as we were out in the city during much of our stay.
The location is close to several public transportation hubs and getting around town is quite easy. The neighborhood itself is quiet and clean.
Communication and coordination with the owner and cleaning person was easy. While we didn't need much, it was good tobknow they were accessible for anything we needed.
I would book this apartment again the next time I am in Paris.