Laurent's flat in the heart of Paris was absolutely perfect for our needs. As others have stated, the location cannot be beat with every amenity you could possibly hope for a 2 minute walk from the front step. The AC and elevator were lifesavers for the unseasonably warm weather at the beginning of our trip, and the apartment itself was well appointed and cleverly arranged for maximum ease of use and comfort.
Just a word of caution - if you're either incredibly large or very tall (over 6'-2" or so) then this flat might not be the best choice. The head height is limited in some areas due to the "loft" style of the flat, most noticeably in the shower and the small elevator (MAX of 2 people and 400 lbs). I'm 5'-11" and 210 lbs and all features and areas of the flat could accommodate me but anyone significantly larger might feel a bit tight.
As for Lauren't himself, an absolute pleasure to work with. Communication was impeccable, arrival /departure key exchange was easy as can be and every need and/or question was provided for.
Couldn't recommend this place enough and hopefully can stay again in the near future.