There are no sufficient words to describe my experience. First of all, the place is fantastic, as seen on the pictures. More then that, I had a restful sleep every night of my 5 day journey. Although perfectly located in Trocadero, found it very convenient that the apartment is not located on the main street where you can be bothered by traffic. No worries about noise during the day nor during the night. Also, only a few minutes walk from the apartment to the nearest subway station and a grocery store.
As for Dani, he was more like a friend rather then a simple host: purchased cheaper Disneyland tickets before my arrival; welcomed with french croissants, juices and coffee. I had to check-out at 5 AM to catch my plane. Unfortunately the subway is not opened at that time but Dani came in help with his private taxi to take me to Porte Maillot from where I had to take a bus all the way to Beauvais Airport.
Overall, there is not even a single thing to be reproached regarding the apartment or Dani. My experience was fantastic in every sense of the word and will definitely like to return to Dani's place.