Many years ago I ate in the same restaurant when it was under another name. Recently when the other nearby French restaurant was booked, I decided to return under the new French theme. The cuisine is so improved I would now truthfully proclaim it the best French restaurant in Naples.
After a 10 year absence, I recently dined there three times in the last two months. It's a married couples ownership. The husband, Philippe is French, his wonderful wife Lisa and their child all speak French. Service is 1st class with a knowledgeable staff. I usually get the steak frites ( beautiful beef and fries) or moules frites (mussels and fries on the side). The steak is just over $40 but worth every cent.
I have taken a date there twice. The first time I was seated in a side by side so I requested it again. I think its Table 27. Ask Madame Lisa. Very romantic. There are plenty of places to eat in Olde Naples near 3rd street. I've lived in Naples 25 years and eaten in all of them. Of the high end places, I think the Chez ("place") is the best. And you don't feel rushed.