Cinq stars are insufficient. Le petit prince is described as just 27m square, but it is so thoughtfully designed to use the space we were very comfortable.
It has all the conveniences and Raoni is a magnificent and thoughtful host. He even made qr-code accessible videos to describe how to use anything in the flat that a visitor might have a question about.
It is located in the quietest part of the beating heart of Paris. Convenient to everything, and a straight shot from Gare du Nord, if you arrive by rail.