Nicholas and Jean-Yves' place is beyond the highest expectations.
The gigantic house is extremely well kept - every corner is special, carefully planned. They welcomed me and my family (6 people) and left us very comfortable to enjoy our time there. In fact it was a great pleasure to get home after a long day exploring Paris. Sometimes we just wanted to stay in... That's by far the best option in the city for groups of 6-8 people!