We stayed in Cecile's apartment for five days (three people) and had an enjoyable stay! Cecile arranged to have a driver pick us up at the airport (75 euros one-way). The driver helped us get into the apartment and settled. The staircase up to the apartment is tight, so carrying large suitcases is difficult but do-able.
The apartment was clean when we arrived, and there were instructions left on the table as well as restaurant recommendations. Cecile always responded to my emails within 24 hours and asked that we email her that we arrived safely. The apartment was equip with everything; we didn't cook but all the supplies were there.The beds were comfortable. There's a pull-out bed and you can ask for the beds to be separated into twins instead of a queen-size.
The apartment was in a very central location. It was very easy to get around. Lots of food in walking distance. Subway was very close. We didn't have to walk more than 10 minutes to get one.
It's a perfect apartment for four but no more than four. I'll definitely stay here again!