I stayed a night only at Maguy's and left very early morning but it was enough for me to feel very comfortable. Maguy is caring and the apartment is lovely and quiet (didn't hear a single noise at night).
It is also safe and well located with a very easy access to the metro. There are also bus stations around. The room was as seen on the picture and very clean, so as the rest of the apartment, and warm, which is cool in winter! The restroom has a little piece of furniture that i personally found original and lovely, in the theme of Paris, find which one it is!
Merci Maguy.