I stayed in this cute little studio for a month and had a wonderful stay!

Catherine was super lovely and made me feel relaxed and at home as soon as I arrived. When I lost my keys, Catherine was very understanding and helpful to provide me with a spare set. Throughout my stay, she was easily contactable and was happy to answer any questions.

Reasons to stay:
Washing machine, good sized kitchen and very comfy soft mattress!
The apartment is located amongst many cafes / bistros / supermarkets / shops.
An easy walk to the Saint Germain Boulevard, the Siene, Saint Placide, Luxembourg Gardens, Saint Sulpice, Montparnasse and Le Bon Marche.
There's is a train station and buses directly in front of the building and others just around the corner.
The area felt safe (even at night) and the building was very secure.
Check-in /out time was flexible.

Things to note:
Wifi is great but there is not TV / radio so you need a laptop to watch TV / device for the radio.
If you're tall, watch you're head at the roof on the mezzanine is super low (but you sleep laying down so it's not really a problem).

Would definitely stay again!