So I will be in Paris on a saturday and sunday night, which has limited some of the restaurants i wanted to try. I am trying to decide on L'Ambroise on a Saturday night or Pierre Gagnaire on Sunday night. I have read that the ambiance is a little more romantic and intimate at L'Ambroise, but I have had trouble finding discussions on the food. I have also heard that Pierre Gagnaire can be hit or miss. In terms of ambiance and food quality, can anyone point me in the right direction?