We were looking to stay in one place for a group of 10 people. It's not easy, but Marlène's apartment was great! We had enough space for everyone to sleep and eat together. The apartment has great localization - near to Gare de Lyon on a beautiful, colorful street (The first what we saw when came there were many people were taking photos with building on the street).
You can find everything there - even tea, coffee, cocoa, sugar, spices, shampoo, or a bottle of wine (great surprise and perfect for that hot day!)
The only thing that was missed is the possibility to clean up hands in the toilets - for (my 70-year-old parents, it was quite hard to go upstairs all the time).