We stayed for 4 nights at the apartment in Montmatre. We are overall happy with our experience there and also with our communications with Arame (she was lovely every time!). Moreover, the apartment is quite well situated, making it easy to get the subway, other ways of transportation and it's near to a Carrefour supermarket. It's also decorated with class and you get a parisian feeling from it.
However, the apartment is pretty small. Like, pretty pretty small. We didn't mind that much, but it's true that its tiny size makes it difficult to live there and do ordinary things. For example, you have to fold the bed back to be able to open the fridge or to use the washmachine. Also, we missed some useful and essential kitchen tools (like a cutting board, good cutting knives, more spoons, etc). Moreover, there's no proper ventilation, so whenever we came back to the apartment, you could feel the humidity originated from the bathroom. We had to keep the window open while we were inside.
On the topic of cleanliness and quality, it's not as presented in the photos. For example, when we were about to cook us dinner, we found out that the only pot available was very dirty and unable to be cleaned. Also the bed sheets seem worn out and did had some dirt stains. Moreover, the kitchen woodwork appeared to be unfinished and loose, and the contents are very disorganised.
In summary, although we had a great time there, it's really expensive for what you get.