We enjoyed a lot in Guillaume´s house. The host has been really polite with us and has help us in all aspects.
The house was wonderful, very cosy and the location was suitable to make turism in Paris (as commented before, the underground was just 300m far from the appartment). Also should be commented the amazing views from the living room (Eiffel Tour and Sacre Coeur, although far away, were able to be seen).
We would like to come back to Guillaume´s house in the future. Thank you so much for your hospitality!