We had an absolutely wonderful time, staying at Xavier's place. Xavier was very nice and friendly and helpful. He went out of his way to get us SIM cards for our cell phones for when we got there. He was responsive to texts (we had a light bulb go out in the kitchen and he handled it).

The 9th is a great neighborhood, centrally located (close to Metro line 12).
There is a very nice shopping street 1 1/2 blocks away where we bought our food each day to make dinner. The kitchen is modern and clean and easy to work in with lots of space to keep our food. We loved having a washing machine (we only packed for 1 week but stayed 15 nights).

The place was very clean. Linens and changes of linens were provided and they were all clean and in great shape.
I would highly recommend Xavier and his apartment.