We spend 6 days in Max apartment. The communication with Max was perfect, he responded very fast which was perfect for us because we needed to change our former apartment.
Max apartment is located in a very quiet backyard with a possibility to sit outside and have breakfast. It is very clean and well equipped (sweet little new bathroom).
There are a lot of great restaurants, bakerys, bars nearby so you can really enjoy the evening around Montmartre.
We really recommend this apartment and would come here every time again.