The apartment was great! It is located in a very nice neighborhood just near to everything you would see in Paris. We were three people and we felt very comfortable at Emmanuel's apartment. The sofa bed and the bed are very comfortable and there was enough space in the living room for us even if the sofa was opened.
The only thing that could be better is that there is no elevator, it is a 5th floor and the stairs are quite small but I could even go up and down with an injured leg the last day :)
Last but not least, Emmanuel is a very nice host because he is very helpful. He will be available always for any question regarding the apartment or just to ask him for recommendations about the city. And he speaks very good English!