We stayed in Marine's and her friend apartment a week and it was a great time. The flat is really cosy, it has 2 rooms (living room and bedroom), fully equipped kitchen. We really liked the interior. Location is good, metro is in 3-5 minutes of walking. The balcony is wonderful. In this flat you feel like a real Parisienne! Definitely recommend it for any period of stay. Thought we haven't seen Marine in person but she answered online and her friends were really helpful.
Merci beaucoup!:)
Best wishes!